Update contributor docs to uv

Author: simonw

docs/contributing.md

@@ -4,31 +4,18 @@
 
 The GitHub repository for this project is [simonw/shot-scraper](https://github.com/simonw/shot-scraper).
 
-To contribute to this tool, first checkout the code. Then create a new virtual environment:
+To contribute to this tool, first checkout the code. You can use [uv](https://github.com/astral-sh/uv) to run the tests like this:
 ```bash
 cd shot-scraper
-python -m venv venv
-source venv/bin/activate
+uv run pytest
 ```
-Or if you are using `pipenv`:
+You'll need to install the Playwright browsers too:
 ```bash
-pipenv shell
-```
-Now install the dependencies and test dependencies:
-```bash
-pip install -e '.[test]'
-```
-Then you'll need to install the Playwright browsers too:
-```bash
-shot-scraper install
-```
-To run the tests:
-```bash
-pytest
+uv run shot-scraper install
 ```
 Some of the tests exercise the CLI utility directly. Run those like so:
 ```bash
-tests/run_examples.sh
+uv run tests/run_examples.sh
 ```
 ## Documentation
 
@@ -37,14 +24,13 @@ Documentation for this project uses [MyST](https://myst-parser.readthedocs.io/)
 To build the documentation locally, run the following:
 ```bash
 cd docs
-pip install -r requirements.txt
-make livehtml
+uv run --with-requirements requirements.txt make livehtml
 ```
 This will start a live preview server, using [sphinx-autobuild](https://pypi.org/project/sphinx-autobuild/).
 
 The CLI `--help` examples in the documentation are managed using [Cog](https://github.com/nedbat/cog). Update those files like this:
 ```bash
-cog -r docs/*.md
+uv run cog -r docs/*.md
 ```
 ## Publishing the release notes