Document how to enforce Jira integration for all child projects

Change-Id: I4aa1fa53a0551db08565003f3df2e5c8f193f2a3
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

src/main/resources/Documentation/config.md

diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index 64372b2..f72fdf9 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -25,6 +25,10 @@
 and if yes this setting in the `project.config` of the `All-Projects`
 project is done automatically.
 
+If child projects must not be allowed to disable the Jira integration
+a project can enforce the Jira integration for all child projects by
+setting `plugin.its-jira.enabled` to `enforced`.
+
 Comment links
 ----------------
 
@@ -127,7 +131,7 @@
     *** Jira Integration
     ***
 
-    By default enabled for all projects [Y/n]?
+    Issue tracker integration for all projects? [DISABLED/?]: enabled
 
     *** Jira connectivity
     ***