Indentation fix

Fix indentation to be consistent with style of other docs in polymer
Indentation fix

more indentation fixes to make docs more consistent with other polymer docs
Merge pull request #807 from Yahkob/patch-5

Indentation fix
Merge pull request #808 from manonthemat/master

Web animation basic usage script working for current web-animations-js
Fix capitalization (github and Github should be GitHub)
Merge pull request #806 from Yahkob/patch-4

Indentation fix
Merge pull request #809 from Yahkob/patch-6

Fix capitalization (github and Github should be GitHub)