docs(https-demo): improve README

[Zack921]

Checklist:

• test cases has added or updated
• documentation has added or updated
• commit message follows the convention commit guidelines

[codecov]

Codecov Report

Merging #499 (06ba480) into master (85d29ed) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #499   +/-   ##
=======================================
  Coverage   91.00%   91.00%           
=======================================
  Files          21       21           
  Lines         678      678           
  Branches      117      117           
=======================================
  Hits          617      617           
  Misses         60       60           
  Partials        1        1           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 85d29ed...06ba480. Read the comment docs.

[github-actions]

🎉 This PR is included in version 2.6.1 🎉

The release is available on:

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

Your semantic-release bot 📦🚀