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-THIS DIRECTORY contains a Makefile and .m4 sources for diagrams
-not included in the examples files. Type "make" and, to clean up,
-"make clean". This directory is assumed to be a subdirectory of
-the examples directory in order to include the necessary definition
-files.
+THIS DIRECTORY contains a Makefile and m4 sources for diagrams not
+included in the examples files. Many of these correspond to questions
+asked on stackexchange, of the form "How do I draw ... with tikz?"
+Producing drawings like these can be satisfying, as shown by the alacrity
+with which knowledgable people assist when questions are asked. Often,
+the question has more to do with geometry than drawing language, and
+the examples here using m4 with dpic merely confirm that the coding can
+often be done reasonably in several possible languages.
+
+This directory is assumed to be a subdirectory of the examples directory
+in order to include the necessary definition files.
+
+Type "make" and, to clean up, "make clean".