Project Intent: to modify files accorinding to instructions
Commit Intent: Add the update theta function to gradientDescent.m
	file
--------------------------------------------------------------------
*gradientDescent.m
-Created a new equation to update theta within the loop of the
 gradienetDescent function based on the lecture notes @
 https://share.coursera.org/wiki/index.php/ML:Linear_Regression_with_Multiple_Variables#Gradient_Descent_for_Multiple_Variables
 ...

*Ran ex1.m from the Octave GUI