Rewrite packages README after monorepo split

Author: yann-eugone

README.md

@@ -1,23 +1,45 @@
-# Yokai Batch
+# symfony/framework-bundle bridge for Batch processing library
 
 [![Latest Stable Version](https://img.shields.io/packagist/v/yokai/batch-symfony-framework?style=flat-square)](https://packagist.org/packages/yokai/batch-symfony-framework)
 [![Downloads Monthly](https://img.shields.io/packagist/dm/yokai/batch-symfony-framework?style=flat-square)](https://packagist.org/packages/yokai/batch-symfony-framework)
 
-Bridge of [`symfony/framework-bundle`](https://github.com/symfony/framework-bundle) for [Batch](https://github.com/yokai-php/batch-src).
+Bridge of [`symfony/framework-bundle`](https://github.com/symfony/framework-bundle) for [Batch](https://github.com/yokai-php/batch).
+
+
+## :warning: BETA
+
+This library is following [semver](https://semver.org/).
+However before we reach the first stable version (`v1.0.0`), we may decide to introduce **API changes in minor versions**.
+This is why you should stick to a `v0.[minor].*` requirement !
+
+
+# Installation
+
+```
+composer require yokai/batch-symfony-framework
+```
 
 
 ## Documentation
 
-Please refer to [main repository](https://github.com/yokai-php/batch-src) documentation.
+This package provides:
+
+- [integration](docs/integration.md) with Symfony framework
 
 
 ## Contribution
 
+This package is a readonly split of a [larger repository](https://github.com/yokai-php/batch-src),
+containing all tests and sources for all librairies of the batch universe.
+
 Please feel free to open an [issue](https://github.com/yokai-php/batch-src/issues)
 or a [pull request](https://github.com/yokai-php/batch-src/pulls)
 in the [main repository](https://github.com/yokai-php/batch-src).
 
+The library was originally created by [Yann Eugoné](https://github.com/yann-eugone).
+See the list of [contributors](https://github.com/yokai-php/batch-src/contributors).
+
 
-## MIT License
+## License
 
-License can be found [here](LICENSE).
+This library is under MIT [LICENSE](LICENSE).

docs/integration.md

@@ -0,0 +1 @@
+todo