update plot titles for matrix plot 4.4.3 on the comparison.py plot_comparison_detail() function.
update plot titles for matrix plot 4.4.3 on the comparison.py plot_comparison_detail() function.

Fixes: https://github.com/university-gender-evolution/notebooks-univ-gender/issues/5

university-gender-evolution/py-university-gender-dynamics-pkg,university-gender-evolution/py-university-gender-dynamics-pkg