[Docs] Update change log & Fix README

[yun-yeo]

Summary of changes

• Update change log
• Fix README

Report of required housekeeping

• Github issue OR spec proposal link
• Wrote tests
• Updated relevant documentation (docs/)
• Added a relevant changelog entry: clog add [section] [stanza] [message]

---

(FOR ADMIN) Before merging

• Added appropriate labels to PR
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)
• Confirm added tests are consistent with the intended behavior of changes
• Ensure all tests pass

[codecov]

Codecov Report

Merging #314 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #314   +/-   ##
========================================
  Coverage    72.84%   72.84%           
========================================
  Files           73       73           
  Lines         3086     3086           
========================================
  Hits          2248     2248           
  Misses         731      731           
  Partials       107      107