Documentation for wallabag installation

docs/en/index.rst

@@ -23,6 +23,7 @@ The main documentation for this application is organized into a couple sections:
    :maxdepth: 2
    :caption: User documentation
 
+   user/installation
    user/create_account
    user/login
    user/configuration

docs/en/user/installation.rst

@@ -0,0 +1,23 @@
+Install wallabag
+================
+
+Requirements
+------------
+
+Installation
+------------
+
+Install Composer:
+
+::
+
+    curl -s http://getcomposer.org/installer | php
+
+Next, on your web server, run this command:
+
+::
+
+    SYMFONY_ENV=prod composer create-project wallabag/wallabag wallabag "2.0.*@alpha" --no-dev
+    php bin/console wallabag:install --env=prod
+
+Now you can access to http://yourwebsite/wallabag.