docs(error/areq): describe your change...

[Karthikvenkat86]

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

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

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

Does this PR introduce a breaking change?

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:

[Karthikvenkat86]

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

What is the current behavior? (You can also link to an open issue here)
Docs Update ( Added example) - Written a most common mistake by all the users as a example.

What is the new behavior (if this is a feature change)?
Docs Update ( Added example)

Does this PR introduce a breaking change?
NO

Please check if the PR fulfills these requirements
Yes

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[googlebot]

Thanks for your pull request. It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

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Once you've signed, please reply here (e.g. I signed it!) and we'll verify. Thanks.

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• If you signed the CLA as a corporation, please let us know the company's name.

[Karthikvenkat86]

I signed it!

[googlebot]

CLAs look good, thanks!

[googlebot]

CLAs look good, thanks!