Apply suggestions from code review

Co-authored-by: daniel-zullo-frequenz <120166726+daniel-zullo-frequenz@users.noreply.github.com>
Signed-off-by: Leandro Lucarella <luca@llucax.com>

RELEASE_NOTES.md

@@ -12,7 +12,7 @@ You can follow these steps to upgrade without regenerating the whole project, if
 
 * Update the `frequenz-repo-config` dependencies in `pyproject.toml` to 0.8.0.
 
-* Run in the root of your project:
+* Run in the root directory of your project:
 
     ```sh
     sed -i '/custom_templates: templates/d' mkdocs.yml
@@ -28,7 +28,7 @@ You can follow these steps to upgrade without regenerating the whole project, if
     EOF
     ```
 
-* Optionally go to the project's settings and replace branch protection rules with the new rulesets. See the new [GitHub configuration guide](https://frequenz-floss.github.io/frequenz-repo-config-python/v0.8/user-guide/start-a-new-project/github-configuration/#branches) for more details.
+* Optionally go to the GitHub project's settings and replace branch protection rules with the new rulesets. See the new [GitHub configuration guide](https://frequenz-floss.github.io/frequenz-repo-config-python/v0.8/user-guide/start-a-new-project/github-configuration/#branches) for more details.
 
 ## New Features