how do I rename a hyperlink?

Hi,

I want to "rename" a link I am sending by e-mail so that the person sees something like "click here" instead of the web address.

I've googled this a lot of people have asked this but none of the answers work.

there is an option to edit a link if you right click it but if I change anything in the address the OK button on the window goes dead

any help please?

thanks