Apply suggestions from code review

Co-authored-by: George L. Yermulnik <[email protected]>

Author: MaxymVlasov

.github/CONTRIBUTING.md

@@ -169,15 +169,15 @@ You can use [this PR](https://github.com/antonbabenko/pre-commit-terraform/pull/
 
     Make sure that all checks pass.
 
-4. (Optional): If you want to see more explicit MyPy checks, you can run:
+4. (Optional): If you want to see more details on MyPy checks, you can run:
 
     ```bash
     tox r -qq -e pre-commit -- mypy --all-files
     ```
 
     Then copy-paste and run the `python3 ...` commands to check the strictest MyPy coverage reports.
 
-5. (Optional): You can find all available environments by running:
+5. (Optional): You can find all available `tox` environments by running:
 
     ```bash
     tox list

pytest.ini

@@ -43,7 +43,7 @@ doctest_optionflags = ALLOW_UNICODE ELLIPSIS
 empty_parameter_set_mark = xfail
 
 faulthandler_timeout = 30
-# Make all warnings as errors
+# Make all warnings be errors
 filterwarnings =
   error