✏️ docs: Railway, Traefik, and Improvements (#2060)

* docs: documentation guidelines

* docs: deploy documentation update

docs/deployment/railway.md

@@ -0,0 +1,55 @@
+---
+title: 🛤️ Railway (one-click)
+description: Deploying LibreChat on Railway
+weight: -9
+---
+
+# Deploying LibreChat on Railway (One-Click Install)
+
+Railway provides a one-click install option for deploying LibreChat, making the process even simpler. Here's how you can do it:
+
+## Steps
+
+### **Visit the LibreChat repository**
+
+Go to the [LibreChat repository](https://github.com/danny-avila/LibreChat) on GitHub.
+
+### **Click the "Deploy on Railway" button**
+
+<p align="left">
+    <a href="https://railway.app/template/b5k2mn?referralCode=HI9hWz">
+        <img src="https://railway.app/button.svg" alt="Deploy on Railway" height="30">
+    </a>
+</p>
+
+(The button is also available in the repository's README file)
+
+### **Log in or sign up for Railway**
+
+If you're not already logged in to Railway, you'll be prompted to log in or sign up for a free account.
+
+### **Configure environment variables**
+
+Railway will automatically detect the required environment variables for LibreChat. Review the configuration of the three containers and click `Save Config` after reviewing each of them.
+
+![image](https://github.com/danny-avila/LibreChat/assets/32828263/4417e997-621c-44b6-8d2d-94d7e4e1a2bf)
+
+The default configuration will get you started, but for more advanced features, you can consult our documentation on the subject: [Environment Variables](../install/configuration/dotenv.md)
+
+### **Deploy**
+
+Once you've filled in the required environment variables, click the "Deploy" button. Railway will handle the rest, including setting up a PostgreSQL database and building/deploying your LibreChat instance.
+
+![image](https://github.com/danny-avila/LibreChat/assets/32828263/d94e20c6-0ae7-42af-8937-7fbd34d63a3b)
+
+### **Access your LibreChat instance**
+
+After the deployment is successful, Railway will provide you with a public URL where you can access your LibreChat instance.
+
+That's it! You have successfully deployed LibreChat on Railway using the one-click install process. You can now start using and customizing your LibreChat instance as needed.
+
+## Additional Tips
+
+- Regularly check the LibreChat repository for updates and redeploy your instance to receive the latest features and bug fixes.
+
+For more detailed instructions and troubleshooting, refer to the official LibreChat documentation and the Railway guides.