chore: update docs

dev.env

@@ -32,7 +32,7 @@ DATABASE_URL=postgres://postgres:password@localhost:5433/postgres
 SQLX_OFFLINE=false
 
 # Google OAuth2
-GOTRUE_EXTERNAL_GOOGLE_ENABLED=false
+GOTRUE_EXTERNAL_GOOGLE_ENABLED=true
 GOTRUE_EXTERNAL_GOOGLE_CLIENT_ID=
 GOTRUE_EXTERNAL_GOOGLE_SECRET=
 GOTRUE_EXTERNAL_GOOGLE_REDIRECT_URI=http://localhost:9998/callback

doc/EC2_SELF_HOST_GUIDE.md

@@ -140,7 +140,26 @@ These commands are helpful for Docker maintenance but use them with caution as t
 
 ## Q & A
 
-### Resolving the 'No Space Left on Device' Error when using free-tier EC2 instance
+### 1.Troubleshooting Redirect Issues After OAuth Login in AppFlowy
+
+#### Issue: Inability to Redirect to AppFlowy Application After Login with Google/GitHub/Discord
+
+If you're encountering difficulties redirecting to the AppFlowy application after attempting to log in using Google, GitHub, or Discord OAuth, follow these steps for troubleshooting:
+
+1. **Check OAuth Configuration for Google**:
+   - Ensure `GOTRUE_EXTERNAL_GOOGLE_ENABLED` is set to `true`.
+   - Verify that all other necessary Google OAuth credentials are correctly configured.
+
+2. **Apply Similar Checks for Other OAuth Providers**:
+   - Follow the same verification process for other OAuth providers like GitHub and Discord. Make sure their respective configurations are correctly set.
+   
+   ![img.png](../assets/images/env_self_host.png)
+
+   The provided image illustrates the correct configuration settings.
+
+
+
+### 2. Resolving the 'No Space Left on Device' Error when using free-tier EC2 instance
 
 Encountering a 'No space left on device' error indicates that your device's storage is full. Here's how to resolve this:
 

doc/deployment.md

@@ -24,7 +24,12 @@ For older versions of Docker Engine that do not include Docker Compose:
 
 ## Steps
 
-> **🚀Note for AWS Users:** [Here](./EC2_SELF_HOST_GUIDE.md) is a step by step guide to self host AppFlowy Cloud on AWS EC2. Skip it if you are not using AWS.
+> **🚀🚀🚀 Quick Try: Step-by-Step Guide**
+>
+> For an in-depth, step-by-step guide on self-hosting AppFlowy Cloud on AWS EC2, particularly for demonstration purposes, please consult our detailed documentation:
+> [Self-Hosting AppFlowy Cloud on AWS EC2 - Step by Step Guide](./EC2_SELF_HOST_GUIDE.md)
+>
+> **Note:** This guide is tailored for demonstration purposes using the AWS EC2 free tier. For more customized deployment options, please follow the subsequent steps outlined below.
 
 
 ### 1. Getting source files