Feature wikis

[ksraj123]

Problem

Implements backend of wikis feature.

Type of Change

• [ ] Bug fix
• [x] New Feature
• [ ] Development of UI/UX prototypes
• [ ] Small refactor
• [x] Change in Documentation

Checklist

• [x] My code follows the same style as the codebase
• [ ] My Code change requires a change in documentation
• [x] I have updated the Readme accordingly
• [x] I made PR against development branch
• [ ] I have run the test cases locally and it's passing.
• [ ] I have squashed my commits

[ksraj123]

@Rupeshiya Thanks for reviewing, Made the suggested changes, please review again. Thanks

[ksraj123]

@Rupeshiya Changes made, Frontend PR is already merged, will change put requests to patch on the frontend in a different PR. Thanks