Exercise 3.6 The file diseases.mat contains a variable called diseases, which is a string array containing names of different diseases. Currently some of the names are in upper case and some in lower case. Write a MATLAB script to read in these data, and convert all names so that they are in title case, i.e., the first letter of each word should be upper case and the rest lower case. Save the resulting string array in a new file called newdiseases.mat. 1x8 string