Update colleges data set with 2021 cases.
drwxr-xr-x - .github
-rw-r--r-- 10 .gitignore
-rw-r--r-- 1289 LICENSE
-rw-r--r-- 2771 NEW-YORK-DEATHS-METHODOLOGY.md
-rw-r--r-- 3162 PROBABLE-CASES-NOTE.md
-rw-r--r-- 22959 README.md
drwxr-xr-x - colleges
drwxr-xr-x - excess-deaths
drwxr-xr-x - live
drwxr-xr-x - mask-use
-rw-r--r-- 4111586 us-counties-recent.csv
-rw-r--r-- 44079862 us-counties.csv
-rw-r--r-- 683351 us-states.csv
-rw-r--r-- 9999 us.csv