Angular.equals - Adding an example.

[SHAHRUKH-KHAN]

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
Doc Update

What is the current behavior? (You can also link to an open issue here)

No Example. - https://docs.angularjs.org/api/ng/function/angular.equals

What is the new behavior (if this is a feature change)?

Adds a example

Does this PR introduce a breaking change?
No

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/angular/angular.js/blob/master/CONTRIBUTING.md#commit-message-format
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Other information:

This Pull requests improves the doc by adding an example to angular.equals function.

[robinj]

I think the code needs a little reformatting to make it more consistent. e.g spacing between commas and parameters and a spacing between an object and attribute names. Otherwise it's a fairly concise and good example.

[SHAHRUKH-KHAN]

@Narretz What about this request ? Does it need any improvements ?

[Narretz]

Thanks, merged. There was a typo in the end (missing / in the closing example), otherwise okay. Just remember for the next time, squash all commits into one.