update readme

Author: nicklog

README.md

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+# Shapecode - Doctrine Session Handler Bundle
+
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+
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+
+This bundle provides a Doctrine session handler to save sessions in a database.
+
+## Install instructions
+
+Installing this bundle can be done through these simple steps:
+
+Add the bundle to your project as a composer dependency:
+
+```bash
+$ composer require shapecode/doctrine-session-handler-bundle
+```
+
+Add the bundle to your bundles.php:
+```php
+<?php
+
+return [
+    // ...
+    Shapecode\Bundle\Doctrine\SessionHandlerBundle\ShapecodeDoctrineSessionHandlerBundle::class => ['all' => true],
+    // ...
+];
+```
+
+Update your database.
+
+```bash
+$ php bin/console doctrine:schema:update --force
+```
+
+Now you have to change your application config (default location of app/config/packages/framework.yaml).
+
+```yml
+framework:
+    session:
+        handler_id: Shapecode\Bundle\Doctrine\SessionHandlerBundle\Session\Handler\DoctrineHandler
+```
+
+Done ;)

docs/README.md

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