Update documentation and fix comments

CONTRIBUTING.md

@@ -1,11 +1,11 @@
-# Сode contribution workflow
-
-1.	Find an open issue or create a new issue on issue tracker for the feature you want to contribute. 
-2.	Fork the project on GitHub. You need to create a feature-branch for your work on your fork, as this way you be able to submit a pull request.
-3.	Make any necessary changes to the source code.
-4.	Add tests that verify that your contribution works as expected and modify existing tests if required.
-5.	Run all tests and make sure all of them pass.
-6.	Run code coverage to check if the lines of code you added are covered by unit tests.
-7.	Once your feature is complete, prepare the commit with appropriate message and the issue number.
-8.	**Create a [pull request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests) and wait for the users to review. When you submit a pull request, please, agree to the terms of [CLA](CLA.md).**
+# Code contribution workflow
+
+1.	Find an open issue or create a new issue on issue tracker for the feature you want to contribute.
+2.	Fork the project on GitHub. You need to create a feature-branch for your work on your fork, as this way you be able to submit a pull request.
+3.	Make any necessary changes to the source code.
+4.	Add tests that verify that your contribution works as expected and modify existing tests if required.
+5.	Run all tests and make sure all of them pass.
+6.	Run code coverage to check if the lines of code you added are covered by unit tests.
+7.	Once your feature is complete, prepare the commit with appropriate message and the issue number.
+8.	**Create a [pull request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests) and wait for the users to review. When you submit a pull request, please, agree to the terms of [CLA](CLA.md).**
 9.	Once everything is done, your pull request gets merged. Your feature will be available with the next release and your name will be added to AUTHORS.