added comments

main.py

@@ -4,21 +4,26 @@ from dotenv import load_dotenv
 import os
 
 def main():
+    # Load the environment
     load_dotenv(override=True)
 
+
+    # Set up database, webserver and PMT connection
     db = Database()
     pmt = PMT()
 
 
+    # fetch PMT shifts
     pmt.login()
 
     days_ahead = int(os.environ.get("DAYS_TO_FETCH"))
     shifts = pmt.get_shifts(days_ahead)
     PMT.print_shifts(shifts)
 
+
+    # Insert those shifts into the database
     db.insert_shifts(shifts)
     
-    print(f"\nFound {len(shifts)} shifts total.")
-    
+
 if __name__ == "__main__":
     main()