update index

index.md

@@ -11,7 +11,7 @@ I am an Assistant Professor in the [School of Business Administration](https://i
 
 Here is my [CV](https://drive.google.com/file/d/1jQFX4aI355KSyiB9joGskpJvUIQzSmDg/view), [LinkedIn](https://www.linkedin.com/in/jaehoon-koo-bb384aa1/), [Google Scholar](https://scholar.google.com/citations?user=nabCGxoAAAAJ&hl=en), and [ORCID](https://orcid.org/0000-0003-3742-1485). 
 
-I am looking for a highly motivated student who are interesed in ML, DL, and optimization. Please contact me at jaehoonkoo[at]hanyang.ac.kr with your 1) CV, 2) transcript, and 3) research statement.
+I am looking for highly motivated students who are interesed in machine learning and deep learning. Please contact me at jaehoonkoo[at]hanyang.ac.kr with your 1) CV, 2) transcript, and 3) research statement.
 
 <!-- ## Summary
 - Expert in ML modeling with CNN, RNN, RL, and statistical testing/regression.