Here are the steps to add a link to your Instagram bio:

1. Open the Instagram app and go to your profile.
2. Tap on "Edit Profile".
3. In the "Website" field, add your desired link.
4. Tap the checkmark or "Done" to save the changes.

Any link placed in the Website field will be hyperlinked. You can also add links to other profiles by tapping "@" followed by the profile's handle.