Change .. code:: to .. code-block::

Sphinx uses .. code-block:: directives to enable highlighting:
http://sphinx-doc.org/markup/code.html#directive-code-block

Use

  for i in *.rst; do
        sed -i 's/code::/code-block::/g' $i
    done

to update these strings to enable proper highlighting.

Note: A have disabled the windows "bash" one, because the highlighting
is broken anyway...

dev/release.rst

@@ -29,7 +29,7 @@ happening that should be fixed - requires investigation).
 Create a new, signed tag on master, with the version as comment, and
 push it:
 
-.. code:: bash
+.. code-block:: bash
 
     $ git tag -a -s -u release@syncthing.net -m v0.10.15 v0.10.15
     $ git push --tags