[FEATURE]: Clarify organization input instructions

[aniket05singh]

Feature and its Use Cases

The current helper text says:

Type an org name and press Enter or comma to add.

It would be clearer to specify that users should enter the GitHub organization username.

Suggested text:

Type a GitHub organization username (e.g., AOSSIE-Org) and press Enter or comma to add.

This small change would reduce confusion and make the expected input more explicit for new users.

Additional Context

This is a small UI/UX improvement that only updates the helper text without changing any functionality.

Code of Conduct

• I have joined the Discord server and will post updates there
• I have searched existing issues to avoid duplicates