chore: adds license and readme text (#104)

Author: lasomethingsomething

LICENSE

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) 2025 Shopware AG
+
+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

@@ -2,10 +2,46 @@
 
 [![codecov](https://codecov.io/gh/shopware/SwagExtensionStore/graph/badge.svg?token=AW90I5IR2H)](https://codecov.io/gh/shopware/SwagExtensionStore)
 
-The integrated Shopware Store for Shopware 6.
+**SwagExtensionStore** is the integrated Shopware Store for **Shopware 6**, enabling seamless extension management and offering direct access to the Shopware ecosystem right from your installation.
 
-## Releasing new version
+## Features
+
+- **Shopware Store integration** for Shopware 6
+- Extension discovery, download, and updates
+- Direct publishing workflow for store releases
+
+
+## About
+
+SwagExtensionStore provides a tightly integrated extension marketplace experience within Shopware 6, supporting businesses and developers in discovering, purchasing, and managing extensions directly through their Shopware admin interface.
+
+## Installation
+
+> The SwagExtensionStore is usually bundled with Shopware 6 installations. If you need to set up the repository for development, follow standard Shopware plugin development procedures.
+
+1. Clone this repository into your Shopware 6 custom plugins directory:
+    ```
+    git clone https://github.com/shopware/SwagExtensionStore.git
+    ```
+2. Install the dependencies and refresh the plugin list:
+    ```
+    bin/console plugin:refresh
+    bin/console plugin:install --activate SwagExtensionStore
+    bin/console cache:clear
+    ```
+3. Access the Extension Store through your Shopware Administration UI.
+
+## Releasing a New Version
+
+To publish a new version to the Shopware Store:
+
+- Go to the **Actions** tab on GitHub.
+- Select the **Release to Store** workflow.
+- Click the **Run workflow** button.
+
+This process creates a new release and publishes it directly to the Shopware Store.
+
+## Contributing
+
+We welcome contributions! Please refer to the [general Shopware contribution guidelines](https://developer.shopware.com/docs/resources/guidelines/code/contribution.html). Ensure your code follows project conventions and includes appropriate unit tests where applicable.
 
-Go to `Actions` tab and select `Release to Store` workflow.
-Then click on `Run workflow` button.
-This will create a new release and publishes it to the Shopware Store.