docs: update security_group image (#173)

doc/EC2_SELF_HOST_GUIDE.md

@@ -95,6 +95,22 @@ If you have any questions, please feel free to reach out to us on [Discord](http
    docker ps -a
    ```
 
+## Post Install
+### Exposing your AppFlowy-Cloud
+
+After installing AppFlowy-Cloud, the server will be serving at port 80 (http) and 443 (http).
+You might need to add Inbound Rule to expose the port.
+- To do so, go to EC2 -> Instances -> your instance id -> Security -> Click on the Security Group
+
+![Security Group Select](../assets/images/security_group.png)
+
+- Under Inbound Rules, Click "Edit inbound rules"
+- Click "Add Rule", select either http or https(if you have configured SSL Cert)
+- Once done, you should be able to see the AppFlowy-Cloud admin page at `http://<your_ec2_host>/web/login`
+
+Note: There are certain risk involved in exposing ports in your EC2 Instances, this guide is for demonstration purposes and should not be used for production.
+You might want to limit IP to only trusted IP address, or use other strategies to mitigate risk.
+
 ## Configuring Environment Secrets for AppFlowy-Cloud Client
 
 Once you've successfully set up AppFlowy Cloud on your server, the next step is to configure the environment secrets for the AppFlowy-Cloud client. These settings are crucial for the client to communicate with your self-hosted server.

doc/README.md

@@ -1,4 +1,4 @@
 # Docs
 - Directory to contain information about usage and development.
-- [Appflowy Cloud Deployment](./deployment.md)
+- [Appflowy Cloud Deployment](./DEPLOYMENT.md)
-- [Appflowy with Cloud](./integration.md)
+- [Appflowy with Cloud](https://docs.appflowy.io/docs/guides/appflowy/self-hosting-appflowy)