do reasearch in HOC

this version add the releases as follow:

• do research in HOC

setState + refs + PureComponent

This version add these contents:

• implement the async events of setState
• implement refs
• implement PureComponent

lifecycles + diff

This version shown how the lifecycle and diff work

components + state|props

This code is shown what is how the componets and state|props work

virtual DOM + JSX

This code is shown what is the virtual Dom and JSX.