added link for promise & global

just skim through the link for global whenever you have time
read some links and hence removed those
read couple more

Most of the important parts is not read yet
Update README.md
created first slide for typeof
some basic typeof example "good ones"
whats wrong with typeof
typeof variable declared or not
fix slide
fix typeof by using toString
check isDate
added getType name
problem with getType
added placeholder for duck-typing
added instanceof

need to read more about it
added a link for strict mode
extra why typof is confusing
added links for js comma
added problem with instancof
added some image