Fixed an error on Data Exploration chapter#21
Merged
rastala merged 1 commit intoAzure:masterfrom Sep 25, 2018
sitomani:master
Merged
Fixed an error on Data Exploration chapter#21rastala merged 1 commit intoAzure:masterfrom sitomani:master
rastala merged 1 commit intoAzure:masterfrom
sitomani:master