Tutorial revision

Correct usage of learning algorithms and elements
Revert "Tutorial revision"

This reverts commit 844a6f333bc844725f4990783af208bd696c4361.
Revert "Revert "Tutorial revision""

This reverts commit 458565d93804fcce2ec39637185f5d8a47737bd2.
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Delete unneeded file
Merge pull request #242 from mhoward2718/DEV2.3.0.0

Tutorial update