Update OAuth2.md

OAuth2.md

@@ -34,14 +34,15 @@ GET https://accounts.google.com/o/oauth2/v2/auth?
 
 Google redirects the user back to your platform's redirect_uri `https://xorismesiti.gr/callback` with an authorization_code in the query parameters.
 
+```sh
+GET https://xorismesiti.gr/callback?
+    code=4/0AX4XfWgNmGZVbV7Kdr8Q9yVyzIYBnbbBdLfX39ZaE8m0w8zT8jKRLl7w-uT8k7WiyLg0Q&
+    state=xyz123
+```
+
 - `URL`: https://xorismesiti.gr/callback
 - `HTTP` Method: GET
 - `Parameters`:
     - `code`: The authorization code sent by Google.
     - `state`: The same state value sent in the original request (for CSRF protection).
 
-```sh
-GET https://xorismesiti.gr/callback?
-    code=4/0AX4XfWgNmGZVbV7Kdr8Q9yVyzIYBnbbBdLfX39ZaE8m0w8zT8jKRLl7w-uT8k7WiyLg0Q&
-    state=xyz123
-```