improve docker

Author: maxdeichmann

pages/docs/self-host.mdx

@@ -26,10 +26,11 @@ Deploy the container to your infrastructure. You can use a managed service like
 
 ```bash copy
 docker run \
---env DATABASE_URL=postgresql://postgres:postgres@localhost:5432/postgres \
+--env DATABASE_URL=postgresql://postgres:postgres@host.docker.internal:5432/postgres \
 --env NEXTAUTH_SECRET=mysecret \
 --env NEXTAUTH_URL=http:localhost:3030 \
--dp 3030:3000 langfuse
+-p 3030:3000 \
+-a STDOUT langfuse
 ```
 
 ## Update the application