Modify dads.spell
Add new words that the apparently new spell command doesnt have.
Modify Terms/countingsort.trm
Generalize/clarify when counting sort is efficient
Modify Terms/distributionSort.trm
Improve wording.
Modify Terms/radixsort.trm
Add that counting sort may be INME.  Improve formatting of example.
Remove NOTE about an in-place variant of radix sort.  It is NOT in-place.