[Docs]:- Adding Contributors section to Readme.md

[mohitd404]

A "Contributors" section in a README is important because it acknowledges contributors, promotes transparency, encourages collaboration, builds a community, and aids in project accountability.

Example:-

[mohitd404]

kindly assign me this issue! I would love to work on it !! Thank you

[toddb]

I can see that you want to add the contributors section similar to other SDK projects (eg novu-kotlin)

## Contributors

<a href="https://github.com/novuhq/novu-dotnet/graphs/contributors">
  <img src="https://contrib.rocks/image?repo=novuhq/novu-dotnet&max=500&columns=20" alt="Contributors"/>
</a>

Would you look to improve the README more generally?

A pull request could look at

• 64

• reconciling this projects readme against other SDKs for consistency
• remove some of the changelog that is available in github
• have a "stocktake" of APIs in Novu and those covered in this SDK (and short falls) (#67 #68 #70 not implemented)

Could you put up a proposal to get agreed? Great work.

[mohitd404]

@toddb sure I will look towards it !!