Create CONTRIBUTING.md

CONTRIBUTING.md

+# How to contribute
+
+#### Last updated 09 Feb 2022
+
+## Ways of contributing
+
+Everyone is welcome to contribute to this repository. We recommend the following steps:
+
+### 1. Announce and discuss your proposal through GitHub “issues”
+
+* Click on “Issues” in the top menu bar and look at the existing issues. See if your idea or suggestion is already being
+  discussed.
+    * If an issue exists, add your comments. If you want to edit the content discussed, let people know through the
+      comments.
+    * If no relevant issue exists, create a new issue by clicking on the green “New issue” button on the right, and
+      choose one of the issues templates. You can find more information on creating issues in the GitHub documentation.
+* Discuss your idea with the editors through comments in the issues. You will be notified when others comment on your
+  issues. Read the comments and write your opinion/questions/answers in the “Leave a comment” box and click on the green
+  “Comment” button on the right.
+
+### 2. Write your content and make a pull request
+
+* Fork the repository by clicking on the "Fork" button, while logged into GitHub
+* Make the changes to the code in your forked copy of the repository
+* Test your code and ensure there is sufficient documentation
+* Open a pull request and refer to the issue identifier
+* A developer from our team will review your code and merge it into the main repository
+
+## Contributor responsibilities
+
+When writing for this repository keep in mind the following:
+
+* For the sake of consistency, please follow the coding style of the original repository.
+* We give great importance to authorship credit. If others were involved in your contribution, by writing up or by
+  providing resources such as diagrams or links, please make sure you acknowledge them in the contributors’ section of
+  your page.
+
+## Attribution of the contributors
+
+All contributors will be displayed in the contributors page of the repository.