README documents wrong HTTP method for creating profiles

[anxkhn]

Context

The API endpoints table in README.md lists GET /profile as the method for creating a new profile. The actual endpoint uses POST /profile. This misleads contributors and API users.

Steps to reproduce

1. Open README.md.
2. Find the API Endpoints table.
3. The row for creating a profile shows:

   | GET    | /profile              | Create a new profile     |
   

4. Try: curl http://localhost:8000/profile -- this returns 405 Method Not Allowed (for GET without a username) or a different error.

Expected behavior

The table should show POST as the method for creating profiles:

| POST   | /profile              | Create a new profile     |

Actual behavior

The table incorrectly shows GET for profile creation.

Files

• README.md -- the API Endpoints table

Acceptance criteria

• The endpoints table shows POST for the create profile row
• All other entries in the table are still correct

Suggested approach

1. Open README.md.
2. Find the line: | GET | /profile | Create a new profile |
3. Change GET to POST.
4. Review the rest of the table to make sure the other entries are correct.