docs: Updated backend contributing docs (#729)

Author: iByteABit256

docs/docs/reference/contributing.md

@@ -36,15 +36,15 @@ The `description` is a descriptive summary of the change the PR will make.
     - Run app: `flutter run`
 
 === "Backend"
-    - Install Python 3.12+ and [UV](https://docs.astral.sh/uv/getting-started/)
-    - Go to `./backend`
-    - Install dependencies `uv sync`
-    - Install the pre-commit hooks `uv pre-commit install`
+    - If you haven't already, switch to the backend folder `cd backend`
+    - Install dependencies with `uv sync`
+    - Install the pre-commit hooks `uv run pre-commit install`
     - Optionally: Activate your python environment `source .venv/bin/activate` (allows you to omit `uv run` in the following steps, environment can be deactivated with `deactivate`)
-    - Initialize/Upgrade requirements for the recipe scraper `uv run python -c "import nltk; nltk.download('averaged_perceptron_tagger_eng', download_dir='./venv/nltk_data')"`
+    - Initialize/Upgrade requirements for the recipe scraper `uv run python -c "import nltk; nltk.download('averaged_perceptron_tagger_eng', download_dir='.venv/nltk_data')"`
     - Initialize/Upgrade the SQLite database with `uv run flask db upgrade`
     - Run debug server with `uv run wsgi.py`
     - The backend should be reachable at `localhost:5000`
+    - For some simple interactions with the backend (like adding a user), you can use `uv run manage.py`
 
     !!! danger Known Warnings
         Do not run the backend using `flask` as it won't initialize the sockets properly.