Support for Presto SQL language

# Feature request
I want Devdocs.io to support Presto SQL query language https://prestodb.io/docs/

## Summary
Since the features in Presto is not like other SQL language (ie. PostgresSQL) and are widely used in many tech companies like Facebook, ByteDance, Twitter, Twillio, Salesforce, and more. So it is a good idea for us to have their docs (https://prestodb.io/docs/) available for use in devdocs

Start by comparing how existing SQL documentation sources are registered in the Devdocs repository, then review the Presto documentation at prestodb.io/docs/. Done means Presto SQL documentation is available through Devdocs in the same way as the project's other supported documentation sources.

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