move installation section into laravel page

Author: KHOUBZA Younes

_data/menu.yml

@@ -1,7 +1,7 @@
 <i class="fa-duotone fa-rocket"></i> Getting Started:
     <i class="fa-duotone fa-book text-indigo-900 mr-1 fa-lg"></i> Introduction: '/'
-    <i class="fa-duotone fa-download text-indigo-900 mr-1 fa-lg"></i> Installation: '/installation/'
-    <i class="fa-brands fa-symfony fa-lg text-black mr-1"></i> Symfony: '/symfony/'
+    # <i class="fa-duotone fa-download text-indigo-900 mr-1 fa-lg"></i> Installation: '/installation/'
+    # <i class="fa-brands fa-symfony fa-lg text-black mr-1"></i> Symfony: '/symfony/'
     <i class="fa-brands fa-laravel fa-lg text-red-900 mr-1"></i> Laravel: '/laravel/'
     <i class="fa-duotone fa-ghost fa-lg text-pink-800 mr-1"></i> Livewire: '/livewire/'
     <i class="fa-duotone fa-angles-right fa-lg text-indigo-900 mr-1"></i> Inertia: '/inertia/'

_includes/_installation.md

@@ -0,0 +1,37 @@
+## <i class="fa-duotone fa-list-radio"></i> Installation
+
+**<span class="text-indigo-900">PHP<span class="text-indigo-500">Flasher</span></span>** is modular and consists of multiple libraries, 
+allowing users to install and use only the specific components they need for their project.
+
+**<span class="text-indigo-900">PHP<span class="text-indigo-500">Flasher</span></span>** can be installed using composer :
+
+{% if 'laravel' == framework %}
+
+**<i class="fa-brands fa-laravel text-red-900 fa-xl"></i> Laravel**:
+```shell
+composer require php-flasher/flasher-laravel
+```
+
+{% else %}
+
+**<i class="fa-brands fa-symfony text-black fa-xl"></i> Symfony**:
+```shell
+{{ framework }}
+composer require php-flasher/flasher-symfony
+```
+
+{% endif %}
+
+---
+
+**<span class="text-indigo-900">PHP<span class="text-indigo-500">Flasher</span></span>** includes a default notification style <i class="fa-duotone fa-comment-captions text-yellow-600"></i>, but users can also install additional adapters to customize the appearance of notifications within their projects such as :
+
+* **[Toastr](/docs/adapter/toastr/)**
+* **[Noty](/docs/adapter/noty/)**
+* **[Notyf](/docs/adapter/notyf/)**
+* **[Sweet Alert](/docs/adapter/sweetalert/)**
+* **[Pnotify](/docs/adapter/pnotify/)**
+
+---
+
+{% include _usage.md %}