add github directions to docs

Nathaniel Saul · Nathaniel Saul · commit 1834929895a0 · 2019-03-04T22:34:22.000-08:00
diff --git a/docs/conf.py b/docs/conf.py
@@ -16,6 +16,7 @@
   # Google Analytics info
   'ga_ua': 'UA-124965309-3',
   'ga_domain': '',
+  'gh_url': 'scikit-tda/persim'
 })
 
 html_short_title = project
