Update README.md

Author: LiYangHart

README.md

@@ -97,7 +97,7 @@ Sample code for hyper-parameter optimization implementation for machine learning
 Please feel free to contact me for any questions or cooperation opportunities. I'd be happy to help.
 * Email: [liyanghart@gmail.com](mailto:liyanghart@gmail.com)
 * GitHub: [LiYangHart](https://github.com/LiYangHart) and [Western OC2 Lab](https://github.com/Western-OC2-Lab/)
-* LinkedIn: [Li Yang](https://www.linkedin.com/in/li-yang-65a190176/)  
+* LinkedIn: [Li Yang](https://www.linkedin.com/in/li-yang-phd-65a190176/)  
 * Google Scholar: [Li Yang](https://scholar.google.com.eg/citations?user=XEfM7bIAAAAJ&hl=en) and [OC2 Lab](https://scholar.google.com.eg/citations?user=oiebNboAAAAJ&hl=en)
 
 ## Citation