Add SymfonyCasts

Author: petk

_posts/16-09-01-Videos.md

@@ -21,3 +21,4 @@ title:   Video Tutorials
 * [PHP Training on LinkedIn.com](https://www.linkedin.com/learning/search?trk=lynda_redirect_learning&sortBy=RELEVANCE&softwareNames=PHP)
 * [PHP Training on Tutsplus](https://code.tutsplus.com/categories/php/courses)
 * [Laracasts](https://laracasts.com/)
+* [SymfonyCasts](https://symfonycasts.com/)