Create Recommended Community Standards documents

[ratanparai]

A good repository should follow recommended community standards -

• [x] Description

• [x] Writing a README

• [x] Code of conduct

• [ ] Contributing

• [x] License

• [x] Issue or pull request template

[ratanparai]

A simple readme file is added in PR #20

[ratanparai]

Contributing file is added in PR #24 by @kajal-alpha