C# please, please add detailed commentary on how you did it:

There are three types of edits that can be performed on strings: insert a character, remove a character, or replace a character. Given two strings, write a function to check if they are one edit (or zero edits) away. This is also called a Levenshtein distance of 1. Assume the input is a string with two words separated by white space. EXAMPLE pale, pIe -> true pales, pale -> true pale, bale -> true pale, bake -> false