Create pull request template

Changes:

- Add new template in .github folder.

Author: Yauhenikapl

.github/ISSUE_TEMPLATE/pull_request_template.md

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+## Description
+
+Please include a summary of the changes and the related issue. List any dependencies that are required for this change.
+
+Fixes #(number of issue in GitHub)
+
+## Type of change
+
+Please delete options that are not relevant.
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+
+## Checklist:
+
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my own code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] My changes generate no new warnings
+- [ ] I have added tests that prove my fix is effective or that my feature works
+
+## Additional notes:
+
+Add any other notes or comments here.