Merge pull request #2 from eads/master

responsive videos
make the intro page
TRYING TO MAKE THE INTRO
correct to make responsive video
THIS IS HOW IT IS SUPPOSED TO BE AT THE END
text and final image
add logos
CREATE CHAPTER 1
text oficial version
Updated oficialcap1.md
text official version
Updated oficialcap1.md
Fix Text version oficial
Updated oficialcap1.md
Created euacap1.md
add menus for the chapter
image for the background
Created euacap1.md
add version era text
Created tesiscap1.md