diff --git a/.github/stale.yml b/.github/workflows/stale.yml
similarity index 100%
rename from .github/stale.yml
rename to .github/workflows/stale.yml
diff --git a/docs/component/recorder.rst b/docs/component/recorder.rst
index 3882161bc..cc425fa8e 100644
--- a/docs/component/recorder.rst
+++ b/docs/component/recorder.rst
@@ -34,6 +34,7 @@ Here is a general view of the structure of the system:
             - Recorder 2
             - ...
         - ...
+        
 This experiment management system defines a set of interface and provided a concrete implementation ``MLflowExpManager``, which is based on the machine learning platform: ``MLFlow`` (`link <https://mlflow.org/>`_). 
 
 If users set the implementation of ``ExpManager`` to be ``MLflowExpManager``, they can use the command `mlflow ui` to visualize and check the experiment results. For more information, pleaes refer to the related documents `here <https://www.mlflow.org/docs/latest/cli.html#mlflow-ui>`_.