Implement a method #substrings that takes a word as the first argument and then an array of valid substrings (your dictionary) as the second argument. It should return a hash listing each substring (case insensitive) that was found in the original string and how many times it was found.
> dictionary = %w[below, down, go, going, horn, how, howdy, it, i, low, own, part, partner, sit]
=> ["below","down","go","going","horn","how","howdy","it","i","low","own","part","partner","sit"]
> substrings("below", dictionary)
=> { "below" => 1, "low" => 1 }A method that can handle multiple words:
> substrings("Howdy partner, sit down! How's it going?", dictionary)
=> { "down" => 1, "go" => 1, "going" => 1, "how" => 2, "howdy" => 1, "it" => 2, "i" => 3, "own" => 1, "part" => 1, "partner" => 1, "sit" => 1 }The Odin Project (https://www.theodinproject.com/paths/full-stack-ruby-on-rails/courses/ruby-programming/lessons/sub-strings)