fix(docs): Update git hook installation steps

README.md

@@ -51,7 +51,7 @@ feat(lang): add Polish language
 ### Install pygitver
 Run in the `git` root folder of the target repository on localhost. 
 ```shell
-docker run --rm -v $(pwd):/app -w /app --entrypoint '' panpuchkov/pygitver /pygitver/scripts/install.sh
+docker run --rm -v $(pwd):/app -w /app --user "$(id -u):$(id -g)" --entrypoint '' panpuchkov/pygitver /pygitver/scripts/install.sh
 ```
 
 * It doesn't matter what the current branch is.
@@ -149,9 +149,9 @@ tox
 
 ##### A single file of the test run
 ```shell
- tox -e coverage -- ./tests/test_git.py -vv
+tox -e coverage -- ./tests/test_git.py -vv
 ```
 or
 ```shell
- coverage run -m pytest -- ./tests/test_git.py 
+coverage run -m pytest -- ./tests/test_git.py 
 ```