Update .env_sample

Author: Didayolo

.env_sample

@@ -1,5 +1,8 @@
 SECRET_KEY=change-this-secret
 
+# For local setup and debug
+DEBUG=True
+
 # Database
 DB_HOST=db
 DB_NAME=postgres
@@ -113,4 +116,4 @@ ENABLE_SIGN_IN=True
 # Logging (Serialized outputs the logs in JSON format)
 # -----------------------------------------------------------------------------
 LOG_LEVEL=info
-SERIALIZED=false
+SERIALIZED=false