Change repository new search api to use new parser. Update docs.
Change repository new search api to use new parser. Update docs.

firstval/github,MalachiTatum/github,peter-murach/github,befairyliu/github,cocktail-io/github,piotrmurach/github,yaoxiaoyong/github,anabhilash619/github,durai145/github,joshsoftware/github,wicky-info/github,davengeo/github,samphilipd/github