+ add missing docs

Author: HYLcool

docs/sphinx_doc/source/tutorial/example_data_functionalities.md

@@ -167,8 +167,7 @@ If you follow the steps above, Trinity-RFT will send a request to the data proce
 
 ## Example: Data Processor for Experience Pipeline
 
-In this example, you will learn how to apply the data processor of Trinity-RFT to reshape rewards of experiences after exploring. This example takes GSM-8K dataset as the example dataset to figure out:
-
+In this example, you will learn how to apply the data processor of Trinity-RFT to reshape rewards of experiences after exploring. This example takes GSM-8K dataset as the example dataset to figure out how to reshape rewards of experiences from the explorer before sent to the trainer from a view of the quality of generated responses.
 
 Before getting started, you need to prepare the main environment of Trinity-RFT and start server for the data processor according to the first subsection in the previous example.