docs: revise Railway official overclaim

Author: jonasfrisell

docs/setting-up/installation/railway.mdx

@@ -2,11 +2,11 @@
 title: Deploy on Railway
 ---
 
-This guide outlines the process of deploying Permify on Railway using our official one-click template.
+This guide covers deploying Permify on Railway, either via a one-click template or manual setup.
 
 ## One-Click Deploy
 
-The fastest way to get started is using the official Permify Railway template:
+The fastest way to get started:
 
 [![Deploy on Railway](https://railway.com/button.svg)](https://railway.com/deploy/permify)