Update README.md

Author: szcf-weiya

README.md

@@ -3,7 +3,11 @@
 An R package for 
 
 > Wang, L., Lin, Y., & Zhao, H. (2024). False Discovery Rate Control via Data Splitting for Testing-after-Clustering (arXiv:2410.06451). arXiv. <https://doi.org/10.48550/arXiv.2410.06451>
->
+
+The proposed approach addresses the double-dipping issue in testing-after-clustering tasks, particularly in single-cell data analysis, where the same data is used both for clustering (to identify cell types) and for testing (to select differentially expressed genes), which can inflate false positives.
+
+![dd](https://github.com/user-attachments/assets/e5383503-2e4d-45d0-adff-77f3a0f82899)
+
 
 ## :hammer_and_wrench: Installation