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index 68ba4206371..e118c4625a4 100644
--- a/Master/tlpkg/texworks/texworks-help/TeXworks-manual/en/Introduction.html
+++ b/Master/tlpkg/texworks/texworks-help/TeXworks-manual/en/Introduction.html
@@ -36,24 +36,25 @@
<!--l. 7-->
<p class="indent">Donald E. Knuth<a id="dx4-2001" name=
"dx4-2001"></a> decided to create a new typesetting system, which
-would be called TE X<a id="dx4-2002" name="dx4-2002"></a>, because
-there had been a change in the printing system used for the volumes
-of his book <em>The Art of Computer Programming</em> and Knuth
-found the result of the new system awful. <!--l. 9--></p>
-<p class="indent">The goal of TE X was then to have a system which
-would always produce the same documents independently of the actual
-machine they were processed on. Knuth also designed the
-<em>Computer Modern</em> family of typefaces and the <span class=
-"sansserif">METAFONT</span><a id="dx4-2003" name="dx4-2003"></a>
-language for font description. <!--l. 11--></p>
+would be called T<sub>E</sub>X<a id="dx4-2002" name=
+"dx4-2002"></a>, because there had been a change in the printing
+system used for the volumes of his book <em>The Art of Computer
+Programming</em> and Knuth found the result of the new system
+awful. <!--l. 9--></p>
+<p class="indent">The goal of T<sub>E</sub>X was then to have a
+system which would always produce the same documents independently
+of the actual machine they were processed on. Knuth also designed
+the <em>Computer Modern</em> family of typefaces and the
+<span class="sansserif">METAFONT</span><a id="dx4-2003" name=
+"dx4-2003"></a> language for font description. <!--l. 11--></p>
<p class="indent">The work initiated in 1977 was finished (the
-languages were “frozen”) in 1989. TE X and <span class=
+languages were “frozen”) in 1989. T<sub>E</sub>X and <span class=
"sansserif">METAFONT</span> are not evolving any more except for
-minor bug fixes (TE X versions are numbered following the decimals
-of <span class="lmmi-12">π</span>—now 3.1415926—and <span class=
-"sansserif">METAFONT</span> the decimals of the number “e”—now
-2.718281). <!--l. 13--></p>
-<p class="indent">TE X provides basic tools
+minor bug fixes (T<sub>E</sub>X versions are numbered following the
+decimals of <span class="lmmi-12">π</span>—now 3.1415926—and
+<span class="sansserif">METAFONT</span> the decimals of the number
+“e”—now 2.718281). <!--l. 13--></p>
+<p class="indent">T<sub>E</sub>X provides basic tools
(commands/instructions/“primitives”) to define typesetting; almost
every detail has to be defined, but the language allows the
creation of macros for repeatedly used constructs. So collections
@@ -61,38 +62,38 @@ of macros are loaded through format files<a id="dx4-2004" name=
"dx4-2004"></a> (i.e., pre-compiled large macro collections).
<!--l. 15--></p>
<p class="indent">Knuth created an original default format (600
-commands, more or less) which is called <em>Plain TE X<a id=
-"dx4-2005" name="dx4-2005"></a></em>. This facilitates creating
-documents. <!--l. 17--></p>
-<p class="indent">The most widely used format is L<span class=
-"ec-lmr-8">A</span>TE X<a id="dx4-2006" name="dx4-2006"></a>
+commands, more or less) which is called <em>Plain
+T<sub>E</sub>X<a id="dx4-2005" name="dx4-2005"></a></em>. This
+facilitates creating documents. <!--l. 17--></p>
+<p class="indent">The most widely used format is
+L<sup>A</sup>T<sub>E</sub>X<a id="dx4-2006" name="dx4-2006"></a>
(Leslie Lamport<a id="dx4-2007" name="dx4-2007"></a>, 1985), which
provides more global commands and structures for documents
(article, book,…) allowing easier and faster work, but sometimes
with loss of flexibility due to the more or less rigid framework.
-But there are many other formats and TE X-variants in use as well,
-such as <span class="cmsy-10x-x-120"><img src=
+But there are many other formats and T<sub>E</sub>X-variants in use
+as well, such as <span class="cmsy-10x-x-120"><img src=
"images/cmsy10-c-41.png" alt="A" class=
"10-120x-x-41" /></span><span class="cmsy-10x-x-120"><img src=
"images/cmsy10-c-4d.png" alt="M" class="10-120x-x-4d" /></span>
<span class="cmsy-10x-x-120"><img src="images/cmsy10-c-53.png" alt=
-"S" class="10-120x-x-53" /></span>-TE X<a id="dx4-2008" name=
-"dx4-2008"></a>, <span class="cmsy-10x-x-120"><img src=
+"S" class="10-120x-x-53" /></span>-T<sub>E</sub>X<a id="dx4-2008"
+name="dx4-2008"></a>, <span class="cmsy-10x-x-120"><img src=
"images/cmsy10-c-41.png" alt="A" class=
"10-120x-x-41" /></span><span class="cmsy-10x-x-120"><img src=
"images/cmsy10-c-4d.png" alt="M" class="10-120x-x-4d" /></span>
<span class="cmsy-10x-x-120"><img src="images/cmsy10-c-53.png" alt=
-"S" class="10-120x-x-53" /></span>-L<span class=
-"ec-lmr-8">A</span>TE X, ConTE Xt<a id="dx4-2009" name=
-"dx4-2009"></a>, or X<sub>E</sub>T<sub>E</sub>X, each having
-specific goals and advantages (and drawbacks). <!--l. 19--></p>
+"S" class="10-120x-x-53" /></span>-L<sup>A</sup>T<sub>E</sub>X,
+ConT<sub>E</sub>Xt<a id="dx4-2009" name="dx4-2009"></a>, or
+X<sub>E</sub>T<sub>E</sub>X, each having specific goals and
+advantages (and drawbacks). <!--l. 19--></p>
<p class="indent">To extend the format, one loads “packages<a id=
"dx4-2010" name="dx4-2010"></a>” which are collections of macros
specific to some aspect of typesetting. <!--l. 21--></p>
-<p class="indent">From its specification in the late 1970s, the TE
-X family had to evolve until now, last version March 2008, to take
-into account the developments in the typesetting world outside TE
-X. <!--l. 23--></p>
+<p class="indent">From its specification in the late 1970s, the
+T<sub>E</sub>X family had to evolve until now, last version March
+2008, to take into account the developments in the typesetting
+world outside T<sub>E</sub>X. <!--l. 23--></p>
<p class="indent">Some of the problems to answer were/are:</p>
<ul class="itemize1">
<li class="itemize">taking into account other languages with
@@ -114,50 +115,52 @@ typesetting systems and formats like PostScript and PDF,</li>
facilities,…</li>
</ul><!--l. 32-->
<p class="indent">To answer these questions and others, many
-“engines” and programmes have been created around TE X, including
-pdftex<a id="dx4-2013" name="dx4-2013"></a>, pdflatex, dvips<a id=
-"dx4-2014" name="dx4-2014"></a>, ps2pdf, and <span class=
-"sansserif">METAPOST</span><a id="dx4-2015" name="dx4-2015"></a>,
-which opens the TE X world to the possibilities of PostScript<a id=
-"dx4-2016" name="dx4-2016"></a> and PDF<a id="dx4-2017" name=
-"dx4-2017"></a>. X<sub>E</sub>T<sub>E</sub>X<a id="dx4-2018" name=
-"dx4-2018"></a> and X<sub>E</sub>L<sup>A</sup>T<sub>E</sub>Xto be
-able to use the “normal” fonts found on the different machines and
-to be able to cope with writing systems different from the left to
-right systems which originated in Europe (Latin and Cyrillic
-letters and associates)—right to left, vertically, pictograms,…Or
-LuaTeX<a id="dx4-2019" name="dx4-2019"></a> and LuaLaTeX to have a
-powerful scripting language. <!--l. 34--></p>
-<p class="indent">To use TE X and the systems of its family, one
-has to create a “source” document<a id="dx4-2020" name=
-"dx4-2020"></a> as TE X is only a system to “transform” a source
-document into a (beautifully) typeset document. This source is a
-simple text with typesetting instructions and one needs a programme
-to create it: the editor<a id="dx4-2021" name="dx4-2021"></a>.
-<!--l. 36--></p>
-<p class="indent">There are many editors able to create a TE X
-source; some are general editors, others are specifically designed
-for TE X: here T<sub>E</sub>Xworks<a id="dx4-2022" name=
-"dx4-2022"></a> comes in. <!--l. 39--></p>
+“engines” and programmes have been created around T<sub>E</sub>X,
+including pdftex<a id="dx4-2013" name="dx4-2013"></a>, pdflatex,
+dvips<a id="dx4-2014" name="dx4-2014"></a>, ps2pdf, and
+<span class="sansserif">METAPOST</span><a id="dx4-2015" name=
+"dx4-2015"></a>, which opens the T<sub>E</sub>X world to the
+possibilities of PostScript<a id="dx4-2016" name="dx4-2016"></a>
+and PDF<a id="dx4-2017" name="dx4-2017"></a>.
+X<sub>E</sub>T<sub>E</sub>X<a id="dx4-2018" name="dx4-2018"></a>
+and X<sub>E</sub>L<sup>A</sup>T<sub>E</sub>Xto be able to use the
+“normal” fonts found on the different machines and to be able to
+cope with writing systems different from the left to right systems
+which originated in Europe (Latin and Cyrillic letters and
+associates)—right to left, vertically, pictograms,…Or LuaTeX<a id=
+"dx4-2019" name="dx4-2019"></a> and LuaLaTeX to have a powerful
+scripting language. <!--l. 34--></p>
+<p class="indent">To use T<sub>E</sub>X and the systems of its
+family, one has to create a “source” document<a id="dx4-2020" name=
+"dx4-2020"></a> as T<sub>E</sub>X is only a system to “transform” a
+source document into a (beautifully) typeset document. This source
+is a simple text with typesetting instructions and one needs a
+programme to create it: the editor<a id="dx4-2021" name=
+"dx4-2021"></a>. <!--l. 36--></p>
+<p class="indent">There are many editors able to create a
+T<sub>E</sub>X source; some are general editors, others are
+specifically designed for T<sub>E</sub>X: here
+T<sub>E</sub>Xworks<a id="dx4-2022" name="dx4-2022"></a> comes in.
+<!--l. 39--></p>
<p class="indent"><b>T<sub>E</sub>Xworks</b> is a project to create
-a text editor for use with the TE X family of tools; we will refer
-to these as (L<sup>A</sup>)T<sub>E</sub>X. Instead of creating a
-new sophisticated program, equipped with multiple tool-bars to meet
-any need, T<sub>E</sub>Xworks provides a simple editor, offering at
-first sight only a limited set of tools for text editing as well as
-a single button and a menu to typeset a
+a text editor for use with the T<sub>E</sub>X family of tools; we
+will refer to these as (L<sup>A</sup>)T<sub>E</sub>X. Instead of
+creating a new sophisticated program, equipped with multiple
+tool-bars to meet any need, T<sub>E</sub>Xworks provides a simple
+editor, offering at first sight only a limited set of tools for
+text editing as well as a single button and a menu to typeset a
(L<sup>A</sup>)T<sub>E</sub>X text. <!--l. 41--></p>
<p class="indent">The idea to create the editor came to
<em>Jonathan Kew<a id="dx4-2023" name="dx4-2023"></a></em>, the
initiator and leader of the project, after a long period of
reflection on the reasons why potential users tend to keep away
from (L<sup>A</sup>)T<sub>E</sub>X, as well as pondering the
-success of the <b>TE XShop<a id="dx4-2024" name="dx4-2024"></a></b>
-editor on the Mac. <!--l. 43--></p>
+success of the <b>T<sub>E</sub>XShop<a id="dx4-2024" name=
+"dx4-2024"></a></b> editor on the Mac. <!--l. 43--></p>
<p class="indent">Finally the goal was also to provide the same
editor on many operating systems: T<sub>E</sub>Xworks currently
-runs on Linux, Mac OS X and Windows. The interface is always the
-same and the program offers the same functionality on all three
+runs on Linux, macOS and Windows. The interface is always the same
+and the program offers the same functionality on all three
platforms. <!--l. 45--></p>
<p class="indent">After this introduction, the second section of
this manual explains how to install the software. In the third
@@ -196,13 +199,12 @@ class="hookleftarrow" /></span> (return), <span class="keystroke">
<span class="keystroke lmsy-10x-x-120">←</span>, <span class=
"keystroke lmsy-10x-x-120">→</span>, <span class=
"keystroke">&nbsp;&nbsp;&nbsp;</span> (space), <span class=
-"keystroke"><img src="images/index1x.png" alt="↦-→" class=
+"keystroke"><img src="images/index1x.png" alt="↦- →" class=
"longmapsto" /></span> (backspace), and <span class=
"keystroke msam-10x-x-120">⇆</span> (tab). <!--l. 54--></p>
<p class="indent">In addition, mouse clicks are depicted as
-<img src="images/images/LMB.png" alt="PIC" width="12" height=
-"13" /> (left click) and <img src="images/images/RMB.png" alt="PIC"
-width="12" height="13" /> (right click; on Mac OS X with a
+<img src="images/LMB.png" alt="pict" /> (left click) and <img src=
+"images/RMB.png" alt="pict" /> (right click; on macOS with a
one-button mouse, this is usually available by holding down
<span class="keystroke">Ctrl</span> while clicking).
<!--l. 56--></p>
@@ -227,7 +229,7 @@ the rest of the text:</p>
"ec-lmtt-10x-x-109">&nbsp;\TeX-World!</span>
</div><!--l. 72-->
<p class="indent">Closely related to this, chapter <a href=
-"Firststeps.html#x10-90003">3
+"Firststeps.html#x9-90003">3
<!--tex4ht:ref: chap:first-steps --></a> contains several
tutorials, which are typeset just like the code examples above, but
with an additional notebook icon next to it. <!--l. 5--></p>