Refactor TODO.md file structure and update tasks

TODO.md

@@ -1,18 +1,21 @@
-# TODO
+# Things to do.
 
-This document is a list of things to do for the project.
+## Technical Implementation
 
 - [x] `kiota` is not a good fit for the project
 - [x] review `openapi-codegen` and `openapi-generator` for Pydantic model generation
-- `openapi-codegen` is a good fit for the project (supports pydantic, etc.)
+	- `openapi-codegen` is a good fit for the project (supports pydantic, etc.)
 - [ ] look for more lessons learned with `kiota`
-- [ ] review naming conventions
-- [ ] add support for roles, etc. 
-- [ ] add support for 
-- [ ] determine if httx is a good fit for the project
+	- [ ] httx abstraction (can be added later)
 
+## Endpoints
+
+- [ ] add support for roles, endpoints, compute, etc. 
 - [ ] saved queries? proceed without for now. 
 
+## General
+
+- [ ] review naming conventions
 - [ ] add tests
 - [ ] add ci/cd
 - [ ] add documentation