Closes #5884

Remove the second instance of the word "and" from the docs where it was duplicated.

The $log provider returns an object and not a function, so this example, which appears to be using
the $log provider, should call it as it would be called in a real-world application.

Closes #5875

Originally, this issue was regarding documenting `restrict: 'CM'` in the directive guide, but it
was pointed out that the restrict documentation is covered in the $compile documentation. Because of
this, a link was simply added to the $compile documentation.

However, the wording suggests that it's actually linking to the directive registration function, in
$compileProvider, so the docs will link there instead. There is a link only a paragraph below to the
$compile documentation, so this does not hurt.

Closes #5516

This always throws me off - I think it helps to make it clear that the class name is arbitrary, and
what matters is the .ng-etc classes.

Closes #5848

Code uses module names with '2' as suffix while the explanation used the module names without the
suffix. The diagram is correct but also does not suffix the module names.

Closes #5567

- referring to `=attr` rather than `=prop` is consistent with note under example with =customerInfo
- change `prop` to `attr` (basically `prop` refers to property in JS object, `attr` is for HTML tag)
- change the function name in description to match the name in code example

Closes #5786