Docs: separate authors into its own RST file.

This is to avoid duplication of the contents on gh-pages-gen branch.

doc/README

@@ -6,5 +6,5 @@ the 'gh-pages-gen' branch; the files with '.rst_' extension (which constitute
 the manpage) are pulled from the 'master' branch to 'gh-pages-gen' branch and
 used together with other docs in the generation of https://re2c.org website.
 
-Normally the general descriptio of each feature is in an '.rst_' file on
+Normally the general description of each feature is in an '.rst_' file on
 'master' branch, and examples are in '.rst' files on 'gh-pages-gen' branch.

doc/manpage.rst.in

@@ -231,6 +231,4 @@ Similar programs are flex(1), lex(1), quex(http://quex.sourceforge.net).
 
 AUTHORS
 =======
-re2c was originaly written by Peter Bumbulis in 1993.
-Since then it has been developed and maintained by multiple volunteers;
-mots notably, Brain Young, Marcus Boerger, Dan Nuffer and Ulya Trofimovich.
+.. include:: @top_srcdir@/doc/authors.rst_

doc/manual/authors.rst_

@@ -0,0 +1,13 @@
+re2c was originally written by Peter Bumbulis ([email protected]) in 1993.
+Marcus Boerger and Dan Nuffer spent several years to turn the original idea into
+a production ready code generator. Since then it has been maintained and
+developed by multiple volunteers, most notably,
+Brian Young ([email protected]),
+`Marcus Boerger <https://github.com/helly25>`_,
+Dan Nuffer ([email protected]),
+`Ulya Trofimovich <https://github.com/skvadrik>`_ ([email protected]),
+`Serghei Iakovlev <https://github.com/sergeyklay>`_,
+`Sergei Trofimovich <https://github.com/trofi>`_,
+`Petr Skocik <https://github.com/pskocik>`_,
+`ligfx <https://github.com/ligfx>`_
+and `raekye <https://github.com/raekye>`_.