fix mac.md for incorrect href
@@ -7,7 +7,7 @@ page_keywords: grafana, installation, mac, osx, guide
# Installing on Mac
There is currently no binary build for Mac. But read the [build from
-source](../project/building_from_source) page for instructions on how to
+source](/project/building_from_source) page for instructions on how to
build it yourself.