Change linter, ruff to black

.pre-commit-config.yaml

@@ -1,10 +1,9 @@
 repos:
-  - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: "v0.2.2"
+  - repo: https://github.com/psf/black
+    rev: 24.3.0  # Use the latest revision of Black
     hooks:
-      - id: ruff
-        args: ["--fix"]
-      - id: ruff-format
+      - id: black
+        language_version: python3
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.5.0
     hooks:

CONTRIBUTING.md

@@ -55,7 +55,7 @@ Then run `poetry install` again. If this doesn't work, please join our [Discord
 
 ## Code Formatting and Linting
 
-Our project uses `ruff` for code formatting and `isort` for import sorting. To ensure consistency across contributions, please adhere to the following guidelines:
+Our project uses `black` for code formatting and `isort` for import sorting. To ensure consistency across contributions, please adhere to the following guidelines:
 
 1. **Install Pre-commit Hooks**:
 
@@ -63,7 +63,7 @@ Our project uses `ruff` for code formatting and `isort` for import sorting. To e
 
    ```bash
    cd software # Change into `software` directory if not there already.
-   poetry shell # /!\ You MUST do it the virtual environment of your project
+   poetry shell # It's better to do it within the virtual environment of your project
    poetry add --dev pre-commit # Install pre-commit as a dev dependency
    pre-commit install
    ```
@@ -75,7 +75,7 @@ Our project uses `ruff` for code formatting and `isort` for import sorting. To e
    If you choose not to use the pre-commit hooks, you can manually format your code using:
 
    ```bash
-   ruff .
+   black .
    isort .
    ```