Add a link to Spark User Guide into list of documents

Description

Currently Spark User Guide is only available from it own Help menu. Could be helpful for new users to have a link to it on the site here http://www.igniterealtime.org/projects/spark/documentation.jsp

Environment

None
Fixed

Assignee

wroot

Reporter

wroot

Expected Effort

None

Ignite Forum URL

None

Priority

Minor
Configure