Sync with master

[dulajdilshan]

Purpose

Describe the problems, issues, or needs driving this feature/fix and include links to related issues in the following format: Resolves issue1, issue2, etc.
Fixes #

Checklist

• Page addition

  • Add permalink to pages.

• Page removal

  • Remove entry from corresponding left nav YAML file.
  • Add redirect_from on the alternative page.
  • If no alternative page, add redirection on the redirections.js file.

• Page rename

  • Add front-matter redirect_from.
  • Add front-matter redirect_to: (if applicable).

• Page restrcuture

  • Add permalink to pages.
  • Add front-matter redirect_from.
  • Add front-matter redirect_to: (if applicable).

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
9 out of 10 committers have signed the CLA.

✅ sm1990
✅ praneesha
✅ anupama-pathirage
✅ manuranga
✅ Ishad-M-I-M
✅ keizer619
✅ HindujaB
✅ ashweni
✅ s-vamshi
❌ [email protected]

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