[Documentation] update the CONTRIBUTING.md with Issues & Pull Requests sections

[sandramsc]

Current Behavior

The contributing guide is a great way to introduce new and existing contributors on how to add their contributions to the projects within an organization. Currently, the CONTRIBUTING.md does not state that there is a first-come-first-serve procedure when it comes to assigning open issues. Although this is stated on the main website here under the section,
"Finding an Issue to Work On", it will serve as a good reminder to have it within this file in the repo as well.

Desired Situation

Add/update the following sections within the CONTRIBUTING.md of the Layer5 projects:

• Issues & Pull Requests --> i.e Creating an Issue, Working on an issue (get it assigned to you)
• Reviewing Pull Requests

Checklist for projects

All the CONTRIBUTING.md's need to be updated using above mentioned desired state.

• layer5

• meshery --> repo

• meshery.io --> repo

• play --> repo

• meshkit --> repo

• meshsync --> repo

• meshmap --> repo

• getnighthawk --> repo

• learn-layer5 --> repo

---

Contributor Resources and Handbook

The layer5.io website uses Gatsby, React, and GitHub Pages. Site content is found under the master branch.

• 📚 See contributing instructions.

• 🎨 Wireframes and designs for Layer5 site in Figma (open invite)

• 🙋🏾🙋🏼 Questions: Discussion Forum and Community Slack.

Join the Layer5 Community by submitting your community member form.

[sandramsc]

Hi, I would like to work on this issue, can I have it assigned to me please?

[abhijeetgauravm]

Yeah @sandramsc