fixed minor typos in my_enumerable tests
Merge pull request #9 from svetliomihailov/fix_enumerable_tests

fixed minor typos in my_enumerable tests
Add Enumerator challenges to the mix
Add #group_by to the mix
Add even more methods
Strict mode
Fix a typo
The very basic outline of vectors
Describe the vectors online
Add the basic outline of the "Tracks" problem
Update README.md
Update README.md
Merge pull request #11 from svetlik/patch-1

Update README.md
Merge pull request #10 from luhova/patch-1

Update README.md
Update README.md
Update README.md
Merge pull request #13 from luhova/patch-2

Update README.md
Merge pull request #12 from kambata940/patch-1

Update README.md
Added from_yaml method
Added from_yaml method