docs: remove goofy sections from README

README.md

@@ -121,8 +121,7 @@ Edit `.env` and set required variables.
 ### 2) Install dependencies and run
 
 ```bash
-go mod init main
-go mod tidy
+go mod download
 go run .
 ```
 
@@ -142,15 +141,6 @@ Run container:
 docker run --rm -p 3000:3000 --env-file .env overleaf-registration-be
 ```
 
-## Security Notes
-
-- Do not commit real credentials or `.env`.
-- Restrict CORS origins in production. Current code allows all origins (`*`).
-- Use HTTPS between client and backend.
-- Use least-privilege admin account where possible.
-- Rotate admin and Turnstile secrets regularly.
-- Avoid logging sensitive token values in production.
-
 ## Operational Notes
 
 - Startup fails fast when required env vars are missing.
@@ -177,15 +167,6 @@ GitLab CI currently includes SAST template in `.gitlab-ci.yml`.
 - `CSRF token not found`
 	- Overleaf login/admin page markup may have changed.
 
-## Suggested Improvements
-
-- Add structured logging and log levels
-- Replace broad CORS policy with strict allowed origins
-- Add health endpoint (`/healthz`)
-- Add unit/integration tests
-- Add explicit request timeouts and retry strategy
-- Create and commit a proper `go.mod` / `go.sum`
-
 ## License
 
 This project is licensed under the BSD 3-Clause License - see the [LICENSE](LICENSE) file for details.