Update tasking chapters to use correct naming format#491

frank-at-adacore wants to merge 1 commit intomasterAdaCore/training_material:masterfrom

slides/210-chapters-in-140_tasking-section-follow-incorrect-naming-schemeAdaCore/training_material:slides/210-chapters-in-140_tasking-section-follow-incorrect-naming-schemeCopy head branch name to clipboard