docs(start/data/custom): fix typo (#13554)

Author: SirDaev

contributors.yml

@@ -308,6 +308,7 @@
 - shivamsinghchahar
 - silvenon
 - SimenB
+- SirDaev
 - SkayuX
 - skratchdot
 - smff

docs/start/data/custom.md

@@ -9,7 +9,7 @@ order: 8
 
 ## Introduction
 
-Instead of using `@react-router/dev`, you can integrate React Router's framework features (like loaders, actions, fetchers, etc.) into your own bundler and server abstractions with Data Mode..
+Instead of using `@react-router/dev`, you can integrate React Router's framework features (like loaders, actions, fetchers, etc.) into your own bundler and server abstractions with Data Mode.
 
 ## Client Rendering