Some changes to make a full-fledged game:
-Include some wrods based on those used at Scrabble tournaments
-Creates a dictionary along with its definition and sentence
-Add function to check whether a given word is valid
-Generates a random grid
-Makes a pretty-print grid
-Create a scoring function
Create a README file - Merge branch 'master' of https://github.com/mayra-cabrera/5x5