Fix assert equality in about_arrays.rb by adding the Array class

[#65851322]
[#65851322] Fix assert equality in about_arrays.rb by adding empty array size of 0
[#65851322] Fix assert equality in about_arrays.rb by adding equality test with value of 2
[#65851322] Fix assert equality in about_arrays.rb by adding [1, 2, 333] for the check of values currently in array
[#65851322] Fix assert equality in about_arrays.rb by adding :peanut for the first element check
[#65851322] Fix assert equality in about_arrays.rb by adding :peanut for the first element check (this time a method call)
[#65851322] Fix assert equality in about_arrays.rb by adding :jelly for the third element
[#65851322] Fix assert equality in about_arrays.rb by adding :jelly for the last element check
[#65851322] Fix assert equality in about_arrays.rb by adding :jelly for the last element check via neg element call
[#65851322] Fix assert equality in about_arrays.rb by adding :jelly for the third from last element check via neg element call
[#65851322] Fix assert equality in about_arrays.rb by adding :peanut for the array of the first element (by index; 0)
[#65851322] Fix assert equality in about_arrays.rb by adding an array of the first two elements of array [:peanut, :butter]
[#65851322] Fix assert equality in about_arrays.rb by adding an array of the first two elements of array [:and, :jelly]
[#65851322] Fix assert equality in about_arrays.rb by adding an array of the elements of array from 2 to 20, which is also [:and, :jelly]
[#65851322] Fix assert equality in about_arrays.rb by adding an empty array for 0 elements beginning from the 4th indexed element
[#65851322] Fix assert equality in about_arrays.rb by adding an empty array for 100 elements beginning from the 4th indexed element
[#65851322] Fix assert equality in about_arrays.rb by adding an nil, as there is no 5th element to get the 0 index 2 dimensional array of (thus disregard some of the earlier comments...lesson learned)
[#65851322] Fix assert equality in about_arrays.rb as (1..5) is of the Range class
[#65851322] Fix assert equality in about_arrays.rb since converting the range 1 through 5 to an array is an array of 1 through 5
[#65851322] Fix assert equality in about_arrays.rb since converting the range 1 through 5 to an array is ALSO comparable to [1,2,3,4] (presumably only those present are compared)