ranktankbacklink checker fix

If any folks are still looking for the fix from https://www.ranktank.org/learn/diy-seo-tools/build-free-backlink-checker-google-sheets/
issue is curly double quotes in the formulas posted, so all you need to do is
replace ” with " (shift+2) if UK keyboard,
then replace “ with " and finally single quotes ‘ ’ with '