Bump version to v0.2.0

Author: ibrahima

setup.py

@@ -22,7 +22,7 @@
     # Versions should comply with PEP440.  For a discussion on single-sourcing
     # the version across setup.py and the project code, see
     # https://packaging.python.org/en/latest/single_source_version.html
-    version='0.1.7',
+    version='0.2.0',
 
     description='Utilities for interacting with Gradescope',
     long_description=long_description,