Add missing reference links

Signed-off-by: Matthew Setter <[email protected]>
mezzio · May 8, 2020 · a626726 · a626726
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commit a626726
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -281,3 +281,6 @@ Date:   Wed Apr 01 14:46:40 2020 -0500
 
   Obvious fix.
 ```
+
+[MkDocs]: https://www.mkdocs.org/
+[Markdown format]: https://www.markdownguide.org/