Verify each finding against the current code and only fix it if needed.

[jaseel0]

Verify each finding against the current code and only fix it if needed.

In @CONTRIBUTING.md around lines 24 - 31, Replace the generic "Follow the
project-specific setup instructions" sentence and the generic bash example block
with concrete, repository-specific setup steps: list the exact package manager
commands to install dependencies (e.g., npm/yarn/pip commands used by this
project), any required global tooling or versions (Node/Python, Docker), how to
create or populate .env or config files, commands to run database migrations or
seed data (if applicable), and the exact command(s) to run tests and start the
dev server; update the section that currently contains the bash snippet so it
contains these precise commands and brief notes about prerequisites, and ensure
references to the existing phrasing "Follow the project-specific setup
instructions" and the bash example block are replaced accordingly.

Originally posted by @jaseel0 in #72 (comment)