DOC-ONLY: MFIB documentation

Change-Id: I8c7277584f231dd4732a4c6013e156a5bb821f41
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/docs/about.rst b/docs/about.rst
index 91c907b..7db9c32 100644
--- a/docs/about.rst
+++ b/docs/about.rst
@@ -4,6 +4,6 @@
 About
 =====
 
-**VPP Version:** 19.01-rc0~326-g162989e
+**VPP Version:** 19.01-rc0~422-g8c8acc0
 
-**Built on:** Mon Nov 26 20:07:23 GMT 2018
+**Built on:** Thu Dec  6 16:35:04 GMT 2018