Fixed typo in internals/contributing/writing-documentation.txt.
@@ -235,9 +235,9 @@ documentation:
Five
^^^^
-* Use :rst:role:`:rfc:<rfc>` to reference RFC and and try to link to the
- relevant section if possible. For example, use ``:rfc:`2324#section-2.3.2```
- or ``:rfc:`Custom link text <2324#section-2.3.2>```.
+* Use :rst:role:`:rfc:<rfc>` to reference RFC and try to link to the relevant
+ section if possible. For example, use ``:rfc:`2324#section-2.3.2``` or
+ ``:rfc:`Custom link text <2324#section-2.3.2>```.
Django-specific markup
======================
