How to Add Code To Your Pin With Special Character Replacements
The very first thing you will need to learn when writing code in your pins, would be to enable Plain Text Editing and come out of the Visual text editor. When you creating your Pin, in the description look at the top right of the description field to see two tabs with the names "visual" and "Text". Switch from Visual to Text and you will notice that everything is now HTML and therefore you can apply markup languages that you familiar with.
To write code or markup as not rendered then you would need to do text replacements for special characters like
< >, below i have listed some special characters that will help you replace text to avoid rendering, allowing you to explain your code to others viewing without rendering the markup.
— Nico J (@MrStarDusty) July 30, 2015