Update README.md

Author: masud99r

README.md

@@ -3,3 +3,5 @@
 Dataset Link: [github-projects-dataset](https://purdue0-my.sharepoint.com/:f:/g/personal/rahman64_purdue_edu/EkTYh2oHAjdOqEd0J0pRBXkBnxPsOjFiDl1HIq1J7PmPjA?e=K7a7RV)
 
 Please read the readme.txt for details dataset formatting.
+
+If you have any problem downloading the dataset, please contact to Masudur Rahman at rahman64@purdue.edu