If you are editing a rich text area in Notes and you wish to display a square bracket instead of forcing the code to be pass through html here is the answer.

Putting

[ <a href='http://www.adfos.com' >AdFos</a> ]

into a rich text field in the Notes client will display

AdFos

on the web.

If you convert the first into Pass Thru by selecting it and ticking the Text->Pass-Thru HTML pull down option, it will display as:

[ <a href='http://www.adfos.com' > AdFos</a> ]

on the web browser. This is because Notes get confused.

This is useful when documenting HTML code.