html2pdf mit composer hinzugefügt

vendor/spipu/html2pdf/doc/install.md

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+# How to Install Html2Pdf
+
+[back](./README.md)
+
+## Composer and Packagist
+
+You have to use Composer to install Html2Pdf.
+
+If you do not know what is Composer:
+
+* You can find the documentation on https://getcomposer.org/doc/
+* You can find all the available packages on https://packagist.org/
+* For example, you can find Html2Pdf: https://packagist.org/packages/spipu/html2pdf
+
+## Install
+
+You just have to launch the following command on the root folder of your project:
+
+```bash
+composer require spipu/html2pdf
+```
+
+If you do not want to use composer, you will need to:
+
+* manually clone the html2pdf repository
+* manually clone all the repositories of the used dependencies
+* manage manually the PS4 autoload
+
+But it is not the recommaned way to instal Html2Pdf. No help will be provided in this case.
+
+### First Test
+
+Here is a HelloWorld example, that you can put on the root folder of your project.
+
+```php
+require __DIR__.'/vendor/autoload.php';
+
+use Spipu\Html2Pdf\Html2Pdf;
+
+$html2pdf = new Html2Pdf();
+$html2pdf->writeHTML('<h1>HelloWorld</h1>This is my first test');
+$html2pdf->output();
+```
+
+Html2Pdf use the PSR-4 autoloader of Composer. You have just to require it. Never require manually the classes, it will not work at all. You must use the Composer functionnalities.
+
+Then, you have just to use the main class `Spipu\Html2Pdf\Html2Pdf`, with the 2 main methods `writeHTML` and `output`.
+
+[back](./README.md)