NIFI-8621: fix page-internal link
NIFI-8621: fix page-internal link

Signed-off-by: Pierre Villard <pierre.villard.fr@gmail.com>

This closes #5089.

jfrazee/nifi,jfrazee/nifi,MikeThomsen/nifi,pvillard31/nifi,jfrazee/nifi,jfrazee/nifi,MikeThomsen/nifi,MikeThomsen/nifi,MikeThomsen/nifi,pvillard31/nifi,pvillard31/nifi,MikeThomsen/nifi,MikeThomsen/nifi,jfrazee/nifi,MikeThomsen/nifi,jfrazee/nifi,pvillard31/nifi,pvillard31/nifi,pvillard31/nifi,pvillard31/nifi,pvillard31/nifi,jfrazee/nifi,jfrazee/nifi