MBH: updating vcs docs

Author: mattben

_data/navlinks.yml

@@ -11,7 +11,7 @@
     - title: CDAT Utilities
       url: /documentation/utilities/utilities.html
     - title: VCS
-      url: /documentation/vcs/vcs.html
+      url: /vcs
     - title: Tutorials
       url: /tutorials.html
     - title: Wiki