fix: prompt yaml (#1112)

* small fix to prompt yaml

* shrink the content

* remove parallel.py

Author: peteryang1

rdagent/scenarios/data_science/proposal/exp_gen/parallel.py

@@ -74,7 +74,7 @@ auto_sota_selector:
         "explanation": "No SOTA experiments and feedbacks"
       }
 
-user: |-
+  user: |-
     # SOTA Experiments and Feedback
     {{ historical_sota_exp_with_desc_and_scores }}