Minor tweaks

Author: javiereguiluz

components/runtime.rst

@@ -303,12 +303,12 @@ Using Options
 
 Some behavior of the Runtimes can be modified through runtime options. They
 can be set using the ``APP_RUNTIME_OPTIONS`` environment variable as an array
-or a JSON encoded value::
+or a JSON encoded string::
 
     $_SERVER['APP_RUNTIME_OPTIONS'] = [
         'project_dir' => '/var/task',
     ];
-    // Which is the same than
+    // same configuration using JSON:
     // $_SERVER['APP_RUNTIME_OPTIONS'] = '{"project_dir":"\/var\/task"}';
 
     require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
@@ -317,7 +317,7 @@ or a JSON encoded value::
 
 .. versionadded:: 7.4
 
-    The support for JSON encoded APP_RUNTIME_OPTIONS value was introduced in Symfony 7.4.
+    The support for JSON contents in ``APP_RUNTIME_OPTIONS`` was introduced in Symfony 7.4.
 
 You can also configure ``extra.runtime`` in ``composer.json``: