[Docs] Add Academy project to list of projects on layer5io org readme

[leecalcote]

Current State:
Layer5 Academy is a full-blown project with 5 repos and counting. It is not represented in the org overview like other projects, though - https://github.com/layer5io/

Desired State:

1. Add a new section with icon, description, and link or links to repo(s).
2. Use the same Academy icon from https://cloud.layer5.io/academy
3. Colorize using brand colors like #00b39f

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Contributor Resources

• Meshery documentation site
• Meshery documentation source
• Instructions for contributing to documentation

[Rajesh-Nagarajan-11]

Hey @leecalcote ,
I'd like to work on this issue .Could you Please assign it to me ? thank you !

[leecalcote]

@Rajesh-Nagarajan-11 sounds good. Please confirm that you know which Academy icon/logo is to be used.

[Rajesh-Nagarajan-11]

Review this PR #47

[Vincamine]

Once the PR#47 is merged, we can close it.

[Rajesh-Nagarajan-11]

@Vincamine Whom to Merge this ?