Make rst2md runnable and update changelog

ChangeLog.rst

@@ -180,8 +180,8 @@
   `@DarkDimius (Dmitry Petrashko) <https://github.com/DarkDimius>`_,
   `@HecticSerenity <https://github.com/HecticSerenity>`_.
 
-* Added `pkgconfig` support which makes it easier to consume the library from
-  `meson` and other build systems
+* Added pkgconfig support which makes it easier to consume the library from
+  meson and other build systems
   (`#916 <https://github.com/fmtlib/fmt/pull/916>`_).
   Thanks `@colemickens (Cole Mickens) <https://github.com/colemickens>`_.
 
@@ -197,7 +197,7 @@
   `@hotwatermorning <https://github.com/hotwatermorning>`_,
   `@Zefz (JohanJansen) <https://github.com/Zefz>`_.
 
-* Improved `string_view` construction performance
+* Improved ``string_view`` construction performance
   (`#914 <https://github.com/fmtlib/fmt/pull/914>`_).
   Thanks `@gabime (Gabi Melman) <https://github.com/gabime>`_.
 

support/rst2md.py

+#!/usr/bin/env python
 # reStructuredText (RST) to GitHub-flavored Markdown converter
 
-import re
+import re, sys
 from docutils import core, nodes, writers
 
 
@@ -35,6 +36,9 @@ class Translator(nodes.NodeVisitor):
         self.version = re.match(r'(\d+\.\d+\.\d+).*', node.children[0]).group(1)
         raise nodes.SkipChildren
 
+    def visit_title_reference(self, node):
+        raise Exception(node)
+
     def depart_title(self, node):
         pass
 
@@ -149,3 +153,7 @@ class MDWriter(writers.Writer):
 def convert(rst_path):
     """Converts RST file to Markdown."""
     return core.publish_file(source_path=rst_path, writer=MDWriter())
+
+
+if __name__ == '__main__':
+    convert(sys.argv[1])