Add reference to docker troubleshooting wiki in `CONTRIBUTING.md`

[piercebb]

Context

• Supports #624
• Add to CONTRIBUTING.md to direct people to existing wiki resources in the case that they run into issues during project setup.

Summary of Changes

• Added link to docker troubleshooting wiki in CONTRIBUTING.md

Checklist

• [ ] Tested Mobile Responsiveness
• [ ] Added Unit Tests
• [ ] CI Passes
• [ ] Deploys to Heroku on test Correctly (Maintainers will handle)
• [x] Added Documentation (Service and Code when required)

Screenshots

Before

After

[DeeDeeG]

This makes plenty of sense to be in CONTRIBUTING.md and I think the text is good, too. Thanks again!