Added licence and made update to Readme.md file

LICENSE

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+
+MIT License
+
+Copyright (c) [2024] [Chinweokwu Emmanuel]
+
+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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-# Point-of-sale-system
-point of sale system (stack) => Html5,Scss(sassy css),Javascript,Ajax,npm,Php,fpdf and Mysql.
+# POS Solution
 
+## Overview
+
+This POS web software solution offers a comprehensive system for managing sales and inventory for businesses. It includes functionalities for both administrators and cashiers to streamline the sales process and manage inventory efficiently. 
+
+![Pos chart page](./images/pos_img.JPG)
+
+## Technologies
+
+- Html5 
+- Scss(sassy css)
+- Javascript
+- Npm
+- Chart.js
+- Fpdf
+- Php
+- Mysql
+
+## Features
+
+- **Admin and Cashier Login and Logout**: Secure access for administrators and cashiers.
+- **Receipt Generation**: Automatically generate receipts after sales transactions.
+- **Sales Reports**: 
+    - View sales charts (daily, weekly, monthly,  yearly, and custom) and snapshots for an easy  overview of business performance.
+    - Generate PDF and CSV files for sales reports.
+    - View detailed sales reports including cashier information, sale time, items bought, and payment method.
+- **Notes**: Add and store notes to the local storage of the browser.
+- **Distributor Management**: Admin can add or remove distributors.
+- **Cashier Management**: Admin can add or remove cashiers from the system.
+- **Settings**:
+    - Adjust system settings such as resetting expiry countdown and product out-of-stock threshold.
+    - Manage products close to expiry and products that are out of stock.
+
+- **Notifications**:
+   - Admin can get notification on products out of stock base on the threshold set or products close to expiry base on the countdown set.
+
+- **Updating of sales price**:
+   - In situations where sales prices or tax values need to be updated, you can easily do so with a click.
+
+## Shell
+
+To clone the repository and get started with the project, use the following shell commands:
+
+```shell
+git clone https://github.com/Emm-Anuel100/Point-of-sale-system.git
+```
+
+```shell
+cd Point-of-sale-system
+```
+
+## License
+
+This project is licensed under the [MIT License](./LICENSE). You can find the license file in the `LICENSE` file in this repository.