Document that serving project documentation must be enabled
Document that serving project documentation must be enabled

Change-Id: I1dd5dc473073ce560bc8e67c5083752f94a3db46
Signed-off-by: Edwin Kempin <b444e279ad95fdef4fbdd82c813b624595df204a@sap.com>

GerritCodeReview/plugins_imagare,GerritCodeReview/plugins_imagare,GerritCodeReview/plugins_imagare