Update Flask serving command and fix typo in app.py

README.md

@@ -110,10 +110,9 @@ bpr.save("save_dir", save_trainset=True)
 ```
 After that, the model can be deployed easily by running Cornac serving app as follows:
 ```bash
-$ FLASK_APP='cornac.serving.app' \
-  MODEL_PATH='save_dir/BPR' \
+$ MODEL_PATH='save_dir/BPR' \
   MODEL_CLASS='cornac.models.BPR' \
-  flask run --host localhost --port 8080
+  flask --app cornac.serving.app run --host localhost --port 8080
 
 # Running on http://localhost:8080
 ```

cornac/serving/app.py

@@ -91,8 +91,8 @@ def _load_model(instance_path):
         "Model loaded"
         if train_set is None
         else """
-        Model and train set loaded. Remove seen items by adding 
-        remove_seen=true' query param to the recommend endpoint.
+        Model and train set loaded. Remove seen items by adding
+        'remove_seen=true' query param to the recommend endpoint.
         """
     )