Fix validation errors.

[XhmikosR]

There might be more, we need to automate this later.

This requires a small change in grunt docs, and after that goes in, we need to update the docs dependency here and rebase this branch.

[XhmikosR]

@vladikoff: I pushed the validation fix in docs and updated this branch to use the latest docs with the fix.

[XhmikosR]

So, @vladikoff any objections in merging this?

[JKVeganAbroad]

Thanks!