[WIP] Create Abstraction category

[MarckK]

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Please check each of these after submitting your pull request:

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• Does your logo clearly state the name of the project/product and follow logo guidelines?
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• ~5 minutes after opening the pull request, the CNCF-Bot will post a link for you to preview your changes. Have you confirmed that they are correct and then added a comment to the PR saying "LGTM"?

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