Shot-scraper

- `shot-scraper --selector SELECTOR` option to specify an element on the page using a CSS selector and take a screenshot of just that element. [8](https://github.com/simonw/shot-scraper/issues/8)
- `selector: ...` key in YAML file to specify an element by CSS selector.
- `--javascript SCRIPT` option to specify custom JavaScript to be executed after the page has loaded but before the screenshot is taken. [12](https://github.com/simonw/shot-scraper/issues/12)
- `javascript:` key in YAML to specify JavaScript to execute.
- `--width` and `--height` options to set the width and height of the browser window used for the screenshot. If a height is specified, the resulting screenshot will be that height rather than being the full height of the page. [13](https://github.com/simonw/shot-scraper/issues/13)
- Equivalent `width:` and `height:` keys in the YAML configuration.

- Switched from npm Playwright to [Python Playwright](https://pypi.org/project/playwright/). [#3](https://github.com/simonw/shot-scraper/issues/3)
- New `shot-scraper install` command for installing the browser needed by Playwright. [6](https://github.com/simonw/shot-scraper/issues/6)
- New `shot-scraper shot URL` command (also the default if you just run `shot-scraper ...`) which takes a single screenshot. [5](https://github.com/simonw/shot-scraper/issues/5)
- `shot-scraper multi shots.yml` command now executes the YAML file with a list of shots in it.

- Initial prototype. [1](https://github.com/simonw/shot-scraper/issues/1)