Returns the number of occurrences of search term in a given string. By default,
the comparison is case-insensitive, but can be made sensitive by setting the second parameter to true.
quote: | Dude! You got a tattoo! So do you, dude! Dude, what does my tattoo say? Sweet! What about mine? Dude! What does mine say? Sweet! What about mine? Dude! What does mine say?{{ quote | count_substring('dude') }}5
