This project uses the gem colorize, if you don't have it installed you can use `bundle install to fetch the necessary dependencies.
And then you can just do ruby run.rb on your terminal to use the program, which will solve the maze.
The file grid.txt allows you to create your custom maze. The only requirement is that all the traversable space has to be enclosed by asterisks (*), which represent walls. You can then use whitespace to expand the interiors. FInally, use 3 and 4 to respectively set the starting and finishing points.