Adding a Clickable web link in the note of any JV

Can anyone please guide me how can I add a clickable link in the note of any invoice/jv/or po etc.,?
Or adding the scanned documents like cheques, recites etc

Attachments should be supported by end of this month. In the meantime, you can create custom fields in forms where you can enter URL of scanned document.

It’s not exactly the same as clickable link but serves the purpose.

See: Guides | Manager