Update README.md

Adding 3 more video links and 1 general link.
Including some PT-BR stuff
Merge pull request #2 from davemo/master

Add some more learning links.
Update README.md

added a new video link
Added AngularJS Community
Update README.md

Added a few links from Christian Grobmeier
Merge pull request #5 from hugodias/master

Added AngularJS Google+ community
Added tutsplus angular video series
Merge pull request #6 from callmehiphop/master

Added additional video series
Update README.md

added another link
Merge branch 'master' of github.com:jmcunningham/AngularJS-Learning
Merge branch 'master' of github.com:cironunes/AngularJS-Learning

Conflicts:
	README.md