add some docs for pipeline
add some docs for pipeline

Andolamin/highland,dayoadeyemi/highland,Whoaa512/highland,Whoaa512/highland,icio/highland,surgeforward/highland,quarterto/highland,svozza/highland,caolan/highland,megawac/highland,kwangkim/highland,vqvu/highland,kwangkim/highland,kjvalencik/highland,icio/highland,svozza/highland,jgrund/highland,jgrund/highland,Andolamin/highland,caolan/highland,megawac/highland,surgeforward/highland,kjvalencik/highland,vqvu/highland,dayoadeyemi/highland