Embedding guide

The form of embedding previously documented here is no longer supported by DartPad.

You can still use DartPad's gist support to embed a DartPad as a normal iframe:

<iframe src="https://dartpad.dev/?id=5c0e154dd50af4a9ac856908061291bc?theme=light"></iframe>

Follow https://github.com/dart-lang/dart-pad/issues/2702 for the future of DartPad embed support.