Update plugins docs and fix links

[AyanSinhaMahapatra]

Fixes #3103

Signed-off-by: Ayan Sinha Mahapatra [email protected]

Tasks

• [x] Reviewed contribution guidelines
• [x] PR is descriptively titled 📑 and links the original issue above 🔗
• [x] Tests pass -- look for a green checkbox ✔️ a few minutes after opening your PR Run tests locally to check for errors.
• [x] Commits are in uniquely-named feature branch and has no merge conflicts 📁