docs: replace 'Options.md' with 'CLI.md' and 'Configuration Files.md'

[JoshuaKGoldberg]

PR Checklist

• Addresses an existing open issue: fixes 🛠 Tooling: Add unit test that every option and/or piece of tooling is mentioned in docs #1124
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

Splits the existing Options.md into two docs:

• CLI.md: describing the common case of running npx create-typescript-app
• Configuration Files.md: describing the less-common case of using a create-typescript-app.config.js

Includes tests that each option is mentioned between the two of them.

🎁

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.11%. Comparing base (907fe76) to head (2d03a91).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1986      +/-   ##
==========================================
- Coverage   99.11%   99.11%   -0.01%     
==========================================
  Files          93       93              
  Lines        4070     4061       -9     
  Branches      231      232       +1     
==========================================
- Hits         4034     4025       -9     
  Misses         36       36              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[github-actions]

🎉 This is included in version v2.6.1 🎉

The release is available on:

• GitHub releases
• npm package (@latest dist-tag)

Cheers! 📦🚀