[geany/geany] 576298: Revert adding reStructuredText extension to README

[Colomban Wendling]

  Branch: refs/heads/master
  Home:   https://github.com/geany/geany

  Commit: 5762981165db403a6e2552d05f05a11f8f5235c0
      https://github.com/geany/geany/commit/5762981165db403a6e2552d05f05a11f8f5235c0
  Author: Colomban Wendling <ban at herbesfolles.org>
  Date:   2011-10-10 (Mon, 10 Oct 2011)

  Changed paths:
    M Makefile.am
  A README
  R README.rst
  M configure.ac

  Log Message:
  -----------
  Revert adding reStructuredText extension to README

This reverts commits fbf77f586d65e319ecc1da11e98dcd932dd88b28 and
3816e40190c2f5331992f795f297669a399803fb.

While having the .rst extension helps GitHub formatting the file, the
renaming broke both Autotools and Waf build systems.