Help Wanted: Add Gitpod docs link to server repo's README

[mickmister]

https://developers.mattermost.com/contribute/more-info/getting-started/using-gitpod

The typical usage of Gitpod is to have an entrypoint in the README of a project. We have docs made to link to in the server repo, but we haven't added the link there.

There are a few options for presentation. Using links or certain images:

[Contribute with Gitpod](https://gitpod.io/#https://github.com/mattermost/mattermost-server)

[![Small Image](https://img.shields.io/badge/Contribute%20with-Gitpod-908a85?logo=gitpod)](https://gitpod.io/#https://github.com/mattermost/mattermost-server)

[![Large Image](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/mattermost/mattermost-server)

Which renders as:

Contribute with Gitpod

---

Some additional related items:

• I think we should update Gitpod docs to emphasize the entrypoint in the server repo rather than https://github.com/mattermost/mattermost-gitpod-config, since we will have a different primary entrypoint to Gitpod
• Help Wanted: Gitpod docs have outdated screenshots for the mattermost GitHub repository #1244
• Help Wanted: Emphasize in Gitpod docs how to contribute to a plugin project #1245

[mickmister]

cc @azigler for visibility

[mickmister]

Also cc @cwarnermm @justinegeffen 🙂

[justinegeffen]

Thanks, @mickmister! What is the turnaround required for this?

[mickmister]

@justinegeffen No urgency at all on this. Technically doesn't ever need to be done but I want to capitalize on the efforts we have for documenting how to use Gitpod. Also, I'd say discussion of how this should be done is the first step. Where in the README and what to use as presentation as mentioned in the ticket description.

[mickmister]

@cwarnermm I'm wondering your thoughts on this ticket, particularly what rendering style mentioned in the description we should use

[cwarnermm]

@mickmister - The second option provided feels like a good fit, particular when contrasted to our own plugin README pages:

Do you have bandwidth to make these updates, @mickmister?

[aniketh-varma]

Hi @cwarnermm, I would like to work on this issue.

[mickmister]

Awesome! Thanks @aniketh-varma!