Update contributor guide to include language from the template

[brianwarner]

Signed-off-by: Brian Warner [email protected]

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name: Update the contributor guide about: Merges in language from the new standard template

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What does this PR do?

Fidelity is updating and standardizing our GitHub presence. This PR adds various guidelines from the default contributor guide.

Checklist

N/A for this PR (governance related)

• [ ] Did you adhere to PEP-8 standards?
• [ ] Did you run black and isort prior to submitting your PR?
• [ ] Does your PR pass all existing unit tests?
• [ ] Did you add associated unit tests for any additional functionality?
• [ ] Did you provide code documentation (Google Docstring format) whenever possible, even for simple functions or classes?
• [ ] Did you add necessary documentation to the website?

Review

Request will go to reviewers to approve for merge.