conf.py: Add oe_git directive

This simplifies linking to git repositories on openembedded.org.

(From yocto-docs rev: 03e13ca4d013e7712216a66eb4cdeb4a456be6a9)

Signed-off-by: Paul Barker <pbarker@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/conf.py

@@ -78,6 +78,7 @@ extlinks = {
     'yocto_git': ('https://git.yoctoproject.org%s', None),
     'oe_home': ('https://www.openembedded.org%s', None),
     'oe_lists': ('https://lists.openembedded.org%s', None),
+    'oe_git': ('https://git.openembedded.org%s', None),
 }
 
 # Intersphinx config to use cross reference with Bitbake user manual