ReadMe updated

GitView @ f7225e50

-Subproject commit 690282746b8a50666215d24d2bf4c8cb7801b9de
+Subproject commit f7225e509f6d0c009ab70f58c906ec2d474caa7e

README.md

@@ -2,6 +2,9 @@
 
 Description: this repo is for UIUC CS242 SP21's assignment3
 
+## Important: 
+Necessary files are all in /src directory since /GitView is considered as a submodule by git now, please check that folder.
+
 ## Functionalities:
 - Giving github's graphQL API endpoint address, user OAuth token, and username, get personal info of this user and rendered it in mobile devices.
 - Find other github user's info through following & follower lists and public repo owners.