In the last version 1.2 , I added the jquery that was required in the master, to the plugin. It now works automatically when you add the < pre > Tag.
Remember to refresh the page to see the formatted code.
About the code and pre tags
< code >A piece of computer code< /code > Definition and Usage The < code > tag is a phrase tag. It defines a piece of computer code. The < code > tag also supports the Global Attributes in HTML. The < code > tag also supports the Event Attributes in HTML. < pre > Text in a pre element is displayed in a fixed-width font, and it preserves both spaces and line breaks < /pre > Definition and Usage The < pre > tag defines preformatted text. Text in a < pre > element is displayed in a fixed-width font (usually Courier), and it preserves both spaces and line breaks. Use the < pre > element when displaying text with unusual formatting, or some sort of computer code.
Tested on Vanilla 188.8.131.52 and 2.1 using cleditor editor and ButtonBar
version 1.3 changed the code a bit because it had suddenly stopped working