Add mdb plugin manifest

[hedgieinsocks]

❯ k krew install --manifest=./plugins/mdb.yaml
Installing plugin: mdb
Installed plugin: mdb
\
 | Use this plugin:
 |      kubectl mdb
 | Documentation:
 |      https://github.com/hedgieinsocks/kubectl-mdb
 | Caveats:
 | \
 |  | Dependencies: jq
 | /
/

[ahmetb]

🤖 Beep beep! I’m a robot speaking on behalf of @ahmetb. 🤖

---

Thanks for submitting your kubectl plugin to Krew!
One of the krew-index maintainers will review it soon. Note that the reviews for new plugin submissions may take a few days.

In the meanwhile, here are a few tips to make your plugin manifest better:

• Make sure your plugin follows the best practices.
• Eliminate redundant wording form shortDescription (it should be max 50 characters).
• Try to word wrap your description to 80-character lines (no usage examples, please).

Thanks for your patience!
/kind new-plugin

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: hedgieinsocks
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