add readme

LICENSE

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+MIT License
+
+Copyright (c) 2022 Conduitry
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# cloudflare-playwright
+
+A simple tool to deal with the "Checking your browser before accessing [site]." interstitials from Cloudflare.
+
+## Usage
+
+This uses Playwright to visit the site, waits for the Cloudflare scripts to do their thing and for the `cf_clearance` cookie to be created, and then outputs the headers that should be set on future requests for automated access.
+
+It can be run with the Playwright browser dependencies installed natively on your system, or with the Playwright Docker image.
+
+### Natively
+
+```shell
+npm install
+npx playwright install-deps firefox
+npx playwright install firefox
+```
+
+Then:
+
+```shell
+node . example.com
+```
+
+### With Docker
+
+```shell
+npm install
+```
+
+Then:
+
+```shell
+./cloudflare-playwright.sh example.com
+```
+
+## License
+
+[MIT](LICENSE)