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Michele Bini committed a691620

Retouch README

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 access to the Perl language.
 
 The preprocessor copies input to the output, while substituting Perl
-code contained special markers: "$<" and ">$".
+code contained within special markers: "$<" and ">$".
+
+The perl expressions are evaluated and substituted with their results
+in the output.
 
 It is possible to choose different markers using command line options
-or by defining the variables $peml_open, $peml_close, using perl.
+or by defining the variables $peml_open, $peml_close, using Perl.
 
 Usage: