Add Chapel to the list of supported language

[victor-ludorum]

@bradcray Sir, I have made pull request kindly review it

[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).

📝 Please visit https://cla.developers.google.com/ to sign.

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

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[victor-ludorum]

@googlebot I signed it!

[googlebot]

CLAs look good, thanks!

[aditmehta9]

I think you've missed keyword 'sync' here.

[victor-ludorum]

Thanks @aditmehta9 I have added it . Please suggest if any other improvement is necessary

[AliabbasMerchant]

Guys,
What is the current status of this PR??
Is it okay to be merged??
Or is there a need to make changes?

[bradcray]

@AliabbasMerchant, @victor-ludorum: I opened issue #587 in hopes of determining what needs to happen next to move your PR forward.

(@AliabbasMerchant, I assume your question is directed toward the code-prettify core developers and not at Victor or myself?)