Document that draft comments are not imported

Change-Id: I6a2d5e002fe85a77f988f48d2db076c937baf45c
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
diff --git a/src/main/resources/Documentation/about.md b/src/main/resources/Documentation/about.md
index e69aed0..64069c1 100644
--- a/src/main/resources/Documentation/about.md
+++ b/src/main/resources/Documentation/about.md
@@ -41,7 +41,8 @@
 On project import the configured max object size on the target Gerrit
 server is ignored.
 
-Draft changes, draft patch sets and change edits are *not* imported.
+Draft changes, draft patch sets, change edits and draft comments are
+*not* imported.
 
 <a id="project-import-process">
 #### Process