Attempts to link two words by changing one char at a time on each word to obtain another word.
WordLink wl = new WordLink(@"wordlist.txt", true);
List<string> result = wl.Find("beer", "wine");
if (result != null)
Console.WriteLine(string.Join(",", result));
else
Console.WriteLine("Could not find link between words.");
beer, deer, dee, die, dine, wine