[Documentation] - Adding Getting Started Snippets

[mike-weiner]

I just wrote a Python script that could serve as a boilerplate for other people interested in getting a quick start with the BC3 API.

https://gist.github.com/mike-weiner/0da5c20de450f73263122fdf1db61f26

In the documentation, I don't see a page for links to snippets to quickly get started using the API. My thought would be a markdown page titled getting-started.md that could house links to helpful Gists or code snippets separated by language.

I would be happy to add this via a PR.