Add Readme and License

LICENSE

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+Copyright (c) 2024 Sylius Sp. z o.o.
+
+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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+<p align="center">
+    <a href="https://sylius.com" target="_blank">
+        <picture>
+          <source media="(prefers-color-scheme: dark)" srcset="https://media.sylius.com/sylius-logo-800-dark.png">
+          <source media="(prefers-color-scheme: light)" srcset="https://media.sylius.com/sylius-logo-800.png">
+          <img alt="Sylius Logo." src="https://media.sylius.com/sylius-logo-800.png">
+        </picture>
+    </a>
+</p>
+
+GmvBundle
+=========
+
+Lightweight local command to calculate the Sylius instance GMV within a specific period
+
+## Features
+
+- Calculate GMV for a specified period. Default period is the last whole year.
+- Exclude taxes and shipping costs from GMV calculation.
+- Provide GMV in multiple currencies.
+
+## Installation
+
+Add the bundle to your Sylius project:
+
+ ```bash
+ composer require sylius/gmv-bundle
+ ```
+
+## Usage
+
+### Command Line
+
+You can calculate the GMV for a specified period using the Symfony console command:
+
+```bash
+bin/console sylius:gmv:calculate [periodStart] [periodEnd]
+```
+
+The `periodStart` and `periodEnd` arguments are optional and should be in the `mm/YYYY` format. If not provided, the command will calculate the GMV for the last whole year.
+
+### Example
+
+The following command will calculate the GMV for the period from 1 January 2024 to 31 May 2024:
+
+```bash
+bin/console sylius:gmv:calculate 01/2024 5/2024
+```
+
+Example command output:
+
+```
+GMV Calculation
+Period Start: 2024-01-01
+Period End: 2024-05-31
+GMV in USD: $3,247.28
+```
+
+Contributing
+------------
+
+[This page](https://docs.sylius.com/en/latest/contributing/index.html) contains all the information about contributing to Sylius.
+
+Follow Sylius' Development
+--------------------------
+
+If you want to keep up with the updates and latest features, follow us on the following channels:
+
+* [Official Blog](https://sylius.com/blog)
+* [Sylius on Twitter](https://twitter.com/Sylius)
+* [Sylius on Facebook](https://facebook.com/SyliusEcommerce)
+
+Bug tracking
+------------
+
+Sylius uses [GitHub issues](https://github.com/Sylius/Sylius/issues).
+If you have found bug, please create an issue.
+
+MIT License
+-----------
+
+License can be found [here](https://github.com/Sylius/Sylius/blob/master/LICENSE).
+
+Authors
+-------
+
+See the list of [contributors](https://github.com/Sylius/Sylius/contributors).