changed error block

Author: danciaclara

self-hosting/govern/integrations/github.mdx

@@ -260,10 +260,10 @@ To configure GitHub integration, you'll need to create a GitHub App within your
 
 ## Troubleshooting
 
-### Error: Invalid private key
+### Invalid private key
 
-<div style={{color:"#ffffff", backgroundColor:"#333333", padding:"10px", borderRadius:"5px"}}> 
-    Failed to create GitHub connection: Invalid keyData
+<div style={{color:"red"}}> 
+   Error: Failed to create GitHub connection: Invalid keyData
 </div>
 
 This error usually occurs when the private key is not correctly generated. To fix this, follow the below steps.
@@ -281,18 +281,19 @@ This error usually occurs when the private key is not correctly generated. To fi
 
 ### Unable to connect GitHub organization account or personal account
 
-<div style={{color:"#ffffff", backgroundColor:"#333333", padding:"10px", borderRadius:"5px"}}> 
-    Error: Invalid request callback URL.
+<div style={{color:"red"}}> 
+   Error: Invalid request callback URL.
 </div>
 
 This error usually occurs when the callback URL is not correctly configured or the GitHub App is not marked public. To fix this, follow the below steps.
 
 1. Check if the callback URL is correctly configured.
 2. Check if your GitHub App is marked public.
 
+### Application secret value not found
 
-<div style={{color:"#ffffff", backgroundColor:"#333333", padding:"10px", borderRadius:"5px"}}> 
-    Error: Application secret value not found for key: x-github-id
+<div style={{color:"red"}}> 
+   Error: Application secret value not found for key: x-github-id
 </div>
 
 This error usually occurs when the application secret is not correctly configured. To fix this, follow the below steps.