Update workflow documentation in contributing page

[joesnellpdx]

Update workflow documentation on contributing page.

If this is too verbose / complicated - happy to trim per that guidance

Closes #74

[joesnellpdx]

@nicholasio

Added you to review this update. I may have gone a bit overboard. Happy to alter in any way you see fit.

[github-actions[bot]]

ESLint Summary View Full Report

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Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: :white_check_mark: success
• Annotations: 0 total

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^{Report generated by eslint-plus-action}

[cypress[bot]]

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Test summary

9 • 0 • 1 • 0

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Run details

Project	@10up/component-library
Status	Passed
Commit	773d7b4715 ℹ️
Started	Jun 10, 2021 9:18 PM
Ended	Jun 10, 2021 9:18 PM
Duration	00:37 💡
OS	Linux Ubuntu - 20.04
Browser	Chrome 91

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[codecov-commenter]

Codecov Report

Merging #74 (f345c2a) into develop (27199b3) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop      #74   +/-   ##
========================================
  Coverage    66.82%   66.82%           
========================================
  Files           12       12           
  Lines          853      853           
  Branches       196      196           
========================================
  Hits           570      570           
  Misses         229      229           
  Partials        54       54           

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[joesnellpdx]

@nicholasio I've updated the documentation... I left some of your comments open for quick reference to the prior dialog. Please review when you have a moment. Hopefully, I have better captured your intention / workflow.