Elm package to compute edit distance.
Currently only Levenshtein distance is supported with O(mn) time complexity.
This means that could take a while with long strings in input, so please run some tests.
levenshteinOfStrings "kitten" "sitten" == 1
-- substitution of "s" for "k"
levenshteinOfStrings "sittin" "sitting" == 1
-- insertion of "g" at the end