Modify a Text File using Sed
You are working at a firm that is collecting information about ancient Greece that will be published in a new book.
A member of your team has contributed a text file that contains the fable of the "The Ants and the Grasshopper." However, the text is incorrect as all of the instances of the word 'ants' has been replaced with the word 'cows'.
You will need to modify this file using a sed command so that the file will have the correct text. All instances of the word 'cows', regardless of case, needs to be replaced with the word 'Ants'.
Once you you have accomplished this task, leave the file on the system so that your editor can review your work.
NOTE: You only need to ignore case sensitivity on the input, not match case on the output.