Update README.md

Add a Contributing section linking to the wiki

Update README.md
Add a Contributing section linking to the wiki
5590762c · Chris Hallberg · 664a5bf1 · 5590762c
Commit 5590762c authored 8 years ago by Chris Hallberg
--- a/README.md
+++ b/README.md
@@ -10,5 +10,8 @@ records.  To learn more, visit https://vufind.org.

 Installation
 ------------
+See online documentation at https://vufind.org/wiki/installation

-See online documentation at https://vufind.org/wiki/installation
\ No newline at end of file
+Contributing
+------------
+See our [developers handbook](https://vufind.org/wiki/development) for more information.