Update README

README.md

@@ -6,10 +6,19 @@ All data is publicly available and
 
 ## Features
 
-- [ ] Search for classes using a variety of filters,
-    - [ ] Major
-    - [ ] Professor
-    - [ ] Location
-    - [ ] Name
-    - [ ] Time
-- [ ] Acquire full information on a course via CRN
+- Search for Classes
+    - Major, Professor, Location, Name, Time of Day
+- Subscribe to Classes
+    - Availability (seat, pre-seat)
+    - Waitlist Movement
+    - Detail Changes (meta, time, location, seats, professor)
+        - `time` Start, End, Days of Week
+        - `seats` Any change in seat/waitlist data
+        - `meta` 
+- Lookup via Course Reference Number (CRN)
+- Smart Time of Day Handling
+    - "2 PM" -> Start within 2:00 PM to 2:59 PM
+    - "2-3 PM" -> Start within 2:00 PM to 3:59 PM
+    - "ends by 2 PM" -> Ends within 12:00 AM to 2:00 PM
+    - "after 2 PM" -> Start within 2:01 PM to 11:59 PM
+    - "before 2 PM" -> Ends within 12:00 AM to 1:59 PM