How to escape $ in robots.txt disallow directive?

@dortha 

To escape the "$" character in a robots.txt disallow directive, you can use the backslash "" character before it. Here's an example:

Disallow: /page$.html

This rule will disallow access to a page called "page$.html" on the website. The backslash will prevent the "$" from being interpreted as a special character and will treat it as a literal character instead.