Adding article about the dependency injection

Explain the different methods to use the dependency injection in Angular
Merge pull request #21 from diestrin/master

Adding a post about dependency injection
Russian version
Spacing fix
feature/ES-ES add ES-ES.md and first resources
Merge pull request #24 from acido69/feature/ES-ES

feature/ES-ES add ES-ES.md and first resources
Merge pull request #23 from komrade/master

Russian version
Update README.md

Add tutsplus article
Merge pull request #25 from pyprism/patch-1

Update README.md
adding frontend workflows with grunt and angular video
Merge pull request #26 from davemo/master

Adds "Frontend Workflows with Grunt and AngularJS"
DE-DE AngularJS + CoffeeScript - der einfachste Weg zu elegantem Code
DE-De AngularJS Buch von Robin Böhm und Philipp Tarasiewicz
Merge pull request #27 from robinboehm/patch-1

DE-DE AngularJS + CoffeeScript - der einfachste Weg zu elegantem Code
Merge pull request #33 from robinboehm/patch-7

DE-De AngularJS Buch von Robin Böhm und Philipp Tarasiewicz
Added egghead.io source code repo
Merge pull request #34 from msfrisbie/master

Added source code for egghead.io videos
Update README.md

Back from vacation, so updates should now resume. Added several new links, and also added some new categories.
Update README.md

Added new links and created a new Beginning/Getting Started section
Update DE-DE.md

merging several changes from @robinboehm