[FAB-13463] Document vendoring - part2
[FAB-13463] Document vendoring - part2

Fix vendoring link.

Change-Id: Ie21ec4fc9e3dfc171948ff5c633da7ae8dd6bf17
Signed-off-by: David Enyeart <3d699cfec69cc11a9ba1c3a1aef3260ab163489b@us.ibm.com>

xixuejia/fabric,xixuejia/fabric,xixuejia/fabric