Bump pygments from 2.4.0 to 2.7.4 in /exploring-data#31

dependabot[bot] wants to merge 1 commit intomasterlearningmachineslab/tutorials:masterfrom

dependabot/pip/exploring-data/pygments-2.7.4learningmachineslab/tutorials:dependabot/pip/exploring-data/pygments-2.7.4Copy head branch name to clipboard