improved README

Author: fabriciojs

README.md

@@ -1 +1,38 @@
-# docker-php-oci8
+## Description
+
+Minimal PHP Docker image with Oracle OCI8 drivers. It's use is intended for [kool.dev](https://github.com/kool-dev/kool), but can fit in any other PHP use-case.
+
+This image is based on [kooldev/php](https://github.com/kool-dev/docker-php), please refer to that repo README for further documentation.
+
+## Available Tags
+
+### 7.4
+
+- [7.4-nginx-oci8](https://github.com/kool-dev/docker-php-oci8/blob/main/7.4-nginx-oci8/Dockerfile)
+- [7.4-nginx-oci8-prod](https://github.com/kool-dev/docker-php-oci8/blob/main/7.4-nginx-oci8-prod/Dockerfile)
+
+## Environment Variables
+
+Please refer to [kooldev/php](https://github.com/kool-dev/docker-php).
+
+### NGINX
+
+Please refer to [kooldev/php](https://github.com/kool-dev/docker-php).
+
+## Usage
+
+Please refer to [kooldev/php](https://github.com/kool-dev/docker-php).
+
+## Contributing
+
+### Update images with templates
+
+- [fwd](https://github.com/fireworkweb/fwd#fireworkwebfwd)
+
+You should change `fwd-template.json` and `template` folder.
+
+After your changes, just run `kool docker fireworkweb/fwd:v1.0 fwd template` to compile the template and generate all version folder/files.
+
+## License
+
+The MIT License (MIT). Please see [License File](LICENSE.md) for more information.