Improve documentation
Improve documentation

- Correct spelling
- Use same Jira URL and username in all of documentation

Change-Id: I9b13eb1a60c76607f1b66658237388870c598d71
Signed-off-by: David Pursehouse <b162584c9d065018308db99337b5a9fbc8680008@sonymobile.com>

GerritCodeReview/plugins_hooks-jira,barqshasbite/its-jira,uoa-group-applications/hooks-jira