03-Objects.md - technical correction

- methods defined via shorthand syntax creates the same kind of method that function expression syntax
- this was changed in order to avoid creating refactoring and interop hazards

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Merge pull request #16 from rwaldron/03-Objects.md-tech-correction-1

03-Objects.md - technical correction