Jira integration improvements

I found several typos in the JIRA integration:

1) Need a help? => Need help? or Need a hand?

In general, just proofread the whole text, but below are a few points of interest:

2) You must provide link to your JIRA server
3) It may be user's login
4) It's must be dedicated account
5) and must has following privileges
6) automaticaly
7) Select witch JIRA
8) Also you are able to select
9) immediatly (automaticaly)
10) new feebback

and more.. Just proofread it ;-)