fix: enable model preloading by default

Author: arthurhenrique

{{cookiecutter.project_slug}}/.env.example

@@ -2,5 +2,5 @@ SECRET_KEY=secret
 DEBUG=True
 MODEL_PATH={{cookiecutter.machine_learn_model_path}}
 MODEL_NAME={{cookiecutter.machine_learn_model_name}}
-MEMOIZATION_FLAG=False
+MEMOIZATION_FLAG=True
 DATABASE_URL=postgresql://postgres:postgres@db:5432/app