Add LICENSE and simple README

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2024 Dmytro Krasun
+
+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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+# cflokiworker
+
+`cflokiworker` is a [Cloudflare Tail Worker](https://developers.cloudflare.com/workers/observability/tail-workers/) for pushing logs and unhandled exceptions to [Grafana Loki](https://grafana.com/oss/loki/) from your Cloudflare workers.
+
+The worker is being used on production for collecting logs from [the ScreenshotOne API](https://screenshotone.com/) Gateway which is implemented as a Cloudflare worker.
+
+## Getting Started
+
+### Clone or Fork, and Deploy
+
+You can clone the repository and use it directly for your needs without any modifications.
+
+```shell
+git clone [email protected]:screenshotone/cflokiworker.git
+npm install
+npm run deploy
+```
+
+Or you can fork it, modify, and deploy your version of the worker. If you feel it can be shared with everybody, don't hesitate to contribute back by creating a pull request.
+
+### Attach to Workers
+
+Once deployed to Cloudflare, you need to update your `wrangler.toml` for workers you want to stream logs from:
+
+```toml
+tail_consumers = [{ service = "logger" }]
+```
+
+## GitHub Actions
+
+When using with GitHub Actions, you need to have 2 secrets available:
+
+- `LOKI_PUSH_URL`` is an HTTP URL of the Loki instance.
+- `LOKI_CREDENTIALS` is a base64-encoded username:password for accessing the Loki instance.
+
+## Resources
+
+You can learn more about Cloudflare Tail Workers at:
+
+1. [Cloudflare Tail Workers official documentation](https://developers.cloudflare.com/workers/observability/tail-workers/).
+2. [A guide on pushing logs to Grafana Loki from Cloudflare Workers with Tail Workers](https://scalabledeveloper.com/posts/cloudflare-tail-worker-for-pushing-logs-to-grafana-loki/).
+
+## License
+
+`cflokiworker` is released under [the MIT license](LICENSE).