#1 Boilerplate method for getExponentiations missing parameter.

README states:

Given four integers, start, stop, step, and exponent, return a String concatenation of all values, raised to the specified exponent, between start up to and not including stop, incrementing by the specified step.

However in test cases and the boilerplate class it is missing the step parameter:

//NumbersUtilitiesTest.java

 @Test
    public void testGetExponentiationNumbersForSquare() {
        // : Given
        String expected = "4916253649";
        int start = 2;
        int stop = 7;
        int exponent = 2;

        // : When
        String actual = NumberUtilities.getExponentiations(start, stop, exponent);

        // : Then
        Assert.assertEquals(expected, actual);
    }
    
    
    @Test
    public void testGetExponentiationNumbersForCube() {
        // : Given
        String expected = "182764";
        int start = 1;
        int stop = 4;
        int exponent = 3;

        // : When
        String actual = NumberUtilities.getExponentiations(start, stop, exponent);

        // : Then
        Assert.assertEquals(expected, actual);
    }

thanks for letting me know. I'll fix the read me.