Enhanced Documentation: Added Cloudflare and Linode Setup (#549)

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docs/deployment/linode.md

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+
+[<img src="../assets/linode-logo.jpg" width="250">](https://www.linode.com/)
+
+# Linode (⚠️Payment required)
+
+**Create a Linode Account and a Linode Server**
+- Go to the Linode website (https://www.linode.com/) and click on the "Sign Up" or "Get Started" button.
+- Follow the instructions to create a new account by providing your personal details and payment information.
+- Once your account is created, you will have access to the Linode Cloud Manager.
+- Click on the "Create" button to create a new Linode server.
+- Choose a location for your server and select the desired server plan.
+- Configure the server settings such as the server's label, root password, and SSH key. If you don't know which image to use, select 🐧💻 Ubuntu 22.04 LTS
+- Click on the 'Create' button to provision the Linode server (wait about 5 minutes after the server is on, because the server is not actually powered on yet)
+
+**Install Docker:**
+- Connect to your Linode server via SSH using a terminal or SSH client.
+- Run the following commands to install Docker and Docker-compose:
+  
+  ```
+  sudo apt update
+  sudo apt install docker.io && apt install docker-compose
+  ```
+## [Install LibreChat](../install/docker_install.md)
+
+## Install and Setup NGINX Proxy Manager:
+
+if you want, you can use NGINX, Apache, or any other proxy manager.
+
+- create a folder 
+  
+  ```
+  mkdir ngnix-proxy-manager
+  cd ngnix-proxy-manager
+  ```
+
+- Create a file named `docker-compose.yml` by running `nano docker-compose.yml`.
+
+- Add this code and save it with `Ctrl+X`, `Y`, and `Enter`:
+
+  ```
+  version: '3.8'
+  services:
+    app:
+      image: 'jc21/nginx-proxy-manager:latest'
+      restart: unless-stopped
+      ports:
+        - '80:80'
+        - '81:81'
+        - '443:443'
+      volumes:
+        - ./data:/data
+        - ./letsencrypt:/etc/letsencrypt
+  ```
+
+- **Run**  `docker-compose up -d`  to start NGINX Proxy Manager
+
+- Login to NGINX Proxy Manager and change the username and password.
+
+The default login link is at `your_linode_ip:81`.
+
+Default Admin User:
+
+ ```
+Email:    admin@example.com
+Password: changeme
+ ```
+
+- Login to NGINX Proxy Manager.
+- Click on "Proxy Host" and add a proxy host.
+
+![248540414-0dbbfdbb-063e-4fa5-bb1d-811064cc4bad](../assets/1-linode.png)
+
+- If you want, you can add the Let's Encrypt SSL certificate.
+
+![248540572-6d0220e2-2506-4b40-8974-a5014df646d6](../assets/2-linode.png)