diff --git a/README.md b/README.md
index 140b01f..461d92b 100644
--- a/README.md
+++ b/README.md
@@ -5,14 +5,24 @@ This repo containts the source codes for paper which is accepted by AAAI-18:
 
 Chen Wang, Le Zhang, Lihua Xie, Junsong Yuan, Kernel Cross-Correlator, In AAAI Conference on Artificial Intelligence (AAAI-18), 2018
 
-There are two experiments in the paper, i.t. visual tracking, human activity recognition using wearable devices, which are contained in the independent folders, respectively.
+There are two experiments in the paper, i.e. visual tracking, human activity recognition using wearable devices, which are contained in the independent folders, respectively.
 
-If you find this repo is useful for your projects, please cite it as:
+
+You may find instructions:
+
+Tracking:
+https://github.com/wang-chen/KCC/blob/master/tracking/README.md
 
 
+If you find this repo is useful for your projects, please cite it as:
+
 @article{wang2017kernel,
+
   title={Kernel Cross-Correlator},
+  
   author={Wang, Chen and Zhang, Le and Xie, Lihua and Yuan, Junsong},
+  
   journal={arXiv preprint arXiv:1709.05936},
+  
   year={2017}
 }