docs: fix invalid markdown

Author: kenjis

docs/quick_start_guide/authentication_flow.md

@@ -9,10 +9,10 @@ Learning any new authentication system can be difficult, especially as they get
 
 ### Configure Redirect URLs
 
-If you need everyone to redirect to a single URL after login/logout/register actions, you can modify the `Config\Auth::$redirects` array in **app/Config/Auth.php**`** to specify the url to redirect to.
+If you need everyone to redirect to a single URL after login/logout/register actions, you can modify the `Config\Auth::$redirects` array in **app/Config/Auth.php** to specify the url to redirect to.
 
 By default, a successful login or register attempt will all redirect to `/`, while a logout action
-will redirect to a [named route](https://codeigniter.com/user_guide/incoming/routing.html#using-named-routes "See routing docs") `login` or a *URI path* `/login`. You can change the default URLs used within the **`**app/Config/Auth.php** config file:
+will redirect to a [named route](https://codeigniter.com/user_guide/incoming/routing.html#using-named-routes "See routing docs") `login` or a *URI path* `/login`. You can change the default URLs used within the **app/Config/Auth.php** config file:
 
 ```php
 public array $redirects = [