Merge pull request #16 from nuzcraft/part_13

Part 13

Merge pull request #15 from nuzcraft/part_12

Part 12

Merge pull request #14 from nuzcraft/part_11

Part 11

Merge pull request #13 from nuzcraft/part_10

Part 10

Merge pull request #12 from nuzcraft/part_9

Part 9

Merge pull request #11 from nuzcraft/part_8

Part 8

Merge pull request #10 from nuzcraft/part_7

Part 7

update readme for part 6.5