update README_en.md.

Signed-off-by: 葛峻恺 <202115006@mail.sdu.edu.cn>

README_en.md

@@ -142,6 +142,10 @@ Step8: Run 8_prediction.py    Predicting real measured data. Please refer to the
 
 Step9: Run 9_time_depth_convert.py    Convert the predicted results into the deep domain through integration.  Please refer to the corresponding documents for specific requirements and details.
 
+###  5. ice content and water content evaluation 
+
+Step10: Run 10_ice&water_content    Set the soil porosity and rock dielectric constant, and predict and invert the moisture content of the active layer and the ice content of frozen soil.
+
 
 ## 🙏 Acknowledgements