Self serve release docs

And code fixes for new:
jenkins-ssh-release-credential

Fix in release-job.sh
These were overlooked for merge:

git config user.name
git config user.email
gerrit_ssh=$(echo "$GERRIT_URL" | awk -F"/" '{print $3}')
git remote set-url origin ssh://"$RELEASE_USERNAME"@"$gerrit_ssh":29418/$PROJECT

Also included a small capitalization fix in lf-info-vote.rst

ISSUE: RELENG-2127
Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>
Signed-off-by: Anil Belur <abelur@linuxfoundation.org>
Change-Id: I11ad122153d71a3d25d6b8839e09435f8b27b19d