Add Julia `times table` demo.
Add Julia `times table` demo.

sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource