Docs: Improve CONTRIBUTING and Development Guide #132

Job	Run time
Lint Files & commits / Check License Headers (amd64)	1m 3s
Lint Files & commits / Spell Check Repo (amd64)	26s
Lint Files & commits / Lint Commit Messages (amd64)	35s
Lint Files & commits / spellcheck (amd64)	1s
Build testing application containers	0s
Build python pkg	0s
Build mlsysops CLI pkg	0s
Build containers	0s
Build Northbound API	0s
	2m 5s

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