the basics fixes
02-Functions.md - technical correction

`this` references in DOM event handlers are the element target, not global object

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Merge pull request #7 from jamiethepiper/the_basics_typo_fix

typos - The basics
Merge pull request #13 from rwaldron/02-Functions.md-tech-correction-1

02-Functions.md - technical correction
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>