add source code link

README.md

@@ -103,7 +103,7 @@ _Web Analytics_
 
 _Business Intelligence_
 
-  * [Metabase](http://www.metabase.com/) - Simple Dashboarding and GUI Query tool, Nightly Emails and Slack Integration w/ PostgreSQL, MySQL, Redshift and other DBs. `AGPL` `Clojure`
+  * [Metabase](http://www.metabase.com/) - Simple Dashboarding and GUI Query tool, Nightly Emails and Slack Integration w/ PostgreSQL, MySQL, Redshift and other DBs. ([Source Code](https://github.com/metabase/metabase)) `AGPL` `Clojure`
 
 ## Automation