added readme

README.md

@@ -0,0 +1,46 @@
+<h1 align="center">Welcome to Excel2Html 👋</h1>
+<p>
+  <a href="#" target="_blank">
+    <img alt="License: MIT" src="https://img.shields.io/badge/License-MIT-yellow.svg" />
+  </a>
+</p>
+
+> Genrate HTML markup from an Excel worksheet that looks perfectly alike
+
+## Install
+
+```sh
+composer require cso/excel2html
+```
+
+## Usage
+
+```php
+$conv = HtmlConverter::fromFilepath(
+    'tests/assets/test.xlsx', 
+    styleOption: StyleOptions::TABLE_SIZE_FIXED | StyleOptions::WITH_COLUMN_WIDTH | StyleOptions::COLUMN_WIDTH_PROPORTIONAL, 
+    worksheetName:'TestTable', 
+    columns:['A', 'B', 'C', 'D', 'E', 'F'],
+    scale: 1.1);
+
+echo $conv->getHtml();
+```
+
+## Run tests
+
+```sh
+./vendor/bin/phpunit --testdox tests
+```
+
+## Author
+
+👤 **Sebastian Lindemeier**
+
+* Github: [@cso-lindi](https://github.com/cso-lindi)
+
+## Show your support
+
+Give a ⭐️ if this project helped you!
+
+***
+_This README was generated with ❤️ by [readme-md-generator](https://github.com/kefranabg/readme-md-generator)_

composer.json

@@ -15,7 +15,7 @@
     ],
     "license": "MIT",
     "require": {
-        "phpoffice/phpspreadsheet": "^3.3"
+        "phpoffice/phpspreadsheet": "^1.4"
     },
     "require-dev": {
         "phpunit/phpunit": "^11"