More features, refactoring

README.md

@@ -1,10 +1,15 @@
 # TODO
 
-- [ ] Fixed length fields
+- [x] Fixed length fields
+  - [x] Packed fixed-length
 - [x] Zig-zag signed fields (sint32, sint64)
-- [x] Don't encode zero values for nested types~
-- [ ] Enums
+- [x] Don't encode zero values for nested types
+- [x] Enums
 - [ ] Maps
 - [ ] Support passthrough of unknown fields
-- [ ] JSON that isn't naive.
+- [ ] Refs to nested types
+- [ ] Imports in proto files
+- [ ] Well-known Google types
+- [ ] JSON that isn't completely naive.
+- [ ] Async service stubs
 - [ ] Cleanup!