List its-phabricator as a plugin

Change-Id: Ia14880adf58735b63773f9b288e5f6a3d664de3c

src/main/templates/Documentation/about.md

diff --git a/src/main/templates/Documentation/about.md b/src/main/templates/Documentation/about.md
index 343ec34..3844054 100644
--- a/src/main/templates/Documentation/about.md
+++ b/src/main/templates/Documentation/about.md
@@ -8,10 +8,12 @@
 
 * [its-bugzilla][its-bugzilla]
 * [its-jira][its-jira]
+* [its-phabricator][its-phabricator]
 * [its-rtc][its-rtc]
 
 [its-bugzilla]: https://gerrit-review.googlesource.com/#/admin/projects/plugins/its-bugzilla
 [its-jira]: https://gerrit-review.googlesource.com/#/admin/projects/plugins/its-jira
+[its-phabricator]: https://gerrit-review.googlesource.com/#/admin/projects/plugins/its-phabricator
 [its-rtc]: https://gerrit-review.googlesource.com/#/admin/projects/plugins/its-rtc
 
 `its-base` provides means to: