PXC-4414 Apply new colour scheme, add a link and new icon to PXC (5.7) (

#148)

* PXC-4414 Apply new colour scheme, add a link and new icon to PXC (5.7)
	modified:   mkdocs-base.yml

* Update mkdocs-base.yml

mkdocs-base.yml

@@ -117,7 +117,7 @@ extra:
   version: 
     provider: mike
   homepage:
-    https://docs.percona.com
+    https://docs.percona.com/percona-for-mysql/
 
 nav:
   - Home: index.md