Find and Format cells with specific text

Hi,

I need help to create a code that finds all cells within the sheet containing "NR/" and apply color to them. Attached is a sample book having several occurrences of it, where only part of the cell content meets that criteria (NR/). Regardless of the rest of the content within the cell, I need those cells to be applied a color (any color will do).

Any help will be appreciated.

Thanks!