Update README.md

note: day eight, class and constructors

note: day 7, all about prototypes and inheritance

note: day 6, event propogation

note: day 5, deboucing and throttling

note: day four

note: async/await keywords over promise

note: promise combinators

note: promise chaining with example

note: intro to async vs sync code, callbacks, and promises

note: day two progress

note: this keyword interview questions

note: objects interview questions

note: currying interview questions

node: closure interview questions