[DOC] Updated developer guide docs

[nicksspirit]

PR Description

Please describe the changes proposed in the pull request:

• Removed reference of make commands
• Updated info about pre-commit
• Add a section to signal to a user that their environment is setup
• Tested that docs are still valid

This PR resolves #(put issue number here, and remove parentheses).

PR Checklist

Please ensure that you have done the following:

1. PR in from a fork off your branch. Do not PR from <your_username>:dev, but rather from <your_username>:<feature-branch_name>.

2. If you're not on the contributors list, add yourself to AUTHORS.md.

3. Add a line to CHANGELOG.md under the latest version header (i.e. the one that is "on deck") describing the contribution.
   • Do use some discretion here; if there are multiple PRs that are related, keep them in a single line.

Automatic checks

There will be automatic checks run on the PR. These include:

• Building a preview of the docs on Netlify
• Automatically linting the code
• Making sure the code is documented
• Making sure that all tests are passed
• Making sure that code coverage doesn't go down.

Relevant Reviewers

Please tag maintainers to review.

• @ericmjl

[codecov]

Codecov Report

Merging #1094 (e61ab45) into dev (11fa282) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##              dev    #1094   +/-   ##
=======================================
  Coverage   97.75%   97.75%           
=======================================
  Files          77       77           
  Lines        3121     3121           
=======================================
  Hits         3051     3051           
  Misses         70       70           

[ericmjl]

Thank you, @OdinTech3! It brought so much clarity talking with you through the developer setup guide. I will do a quick review shortly.

[nicksspirit]

Awesome thanks for the opportunity. I'll see you in the discord channel.