Load "getting started" docs onto "core" docker image

[cgardens]

This issue is a child of #3879 and dependent on an open question in #4280.

Tell us about the problem you're trying to solve

When a user is configuring a connector, we want to show the appropriate docs in the UI. Part of the plan there is including the docs on a docker image in the airbyte platform so that even if airbyte doesn't have internet access it can render docs.

Describe the solution you’d like

• We need to figure out how to copy any connector docs with the name getting-started.md. Everything else can be ignored.
• We also need to figure out how to make sure the names of docs, matches up with with connector names in the ui. In other words the UI has to be using the right identifier to be able to find these docs; not clear what id we should be using here. Ideally we would just use the UUID associated with the connector. The problem is since we are reusing the docs that are hosted publicly we are a little locked into the convention there, which just used name for human friendliness. Either we need to make a change there or figure out how the UI can figure out what these names are.

[cgardens]

just needs to be merged.