Watermark/copyright Lightroom CC Windows 10

Hi, I am trying to add a watermark to my photos. I am using Lightroom CC and using a Windows 10 laptop. The only thing I can see regarding watermark options is if I press the I button for information of the photo, there is a little option for adding a watermark. I type it in but it doesn't seem to do anything at all, even when I export the photo there is still no watermark.