fix: re-add removed variable + fix documentation (#5902)

re-add removed variable + fix documentation

Co-authored-by: Ítalo Johnny <italojohnnydosanjos@gmail.com>

docker_example/README.md

@@ -44,7 +44,7 @@ Environment variables:
 
 Volumes:
 
-- `langflow-data`: This volume is mapped to `/var/lib/langflow` in the container.
+- `langflow-data`: This volume is mapped to `/app/langflow` in the container.
 
 ### PostgreSQL Service
 

docker_example/docker-compose.yml

@@ -11,6 +11,7 @@ services:
     environment:
       - LANGFLOW_DATABASE_URL=postgresql://langflow:langflow@postgres:5432/langflow
       # This variable defines where the logs, file storage, monitor data and secret keys are stored.
+      - LANGFLOW_CONFIG_DIR=/app/langflow
     volumes:
       - langflow-data:/app/langflow
 

docs/docs/Deployment/deployment-docker.md

@@ -59,7 +59,7 @@ Environment variables:
 
 Volumes:
 
-- `langflow-data`: This volume is mapped to `/var/lib/langflow` in the container.
+- `langflow-data`: This volume is mapped to `/app/langflow` in the container.
 
 ### PostgreSQL service {#121140decbfe4997b12213bdd2c4da7e}