Update README.md

got rid of old pagination stuff that somehow got left in the documentation
Merge remote-tracking branch 'instructure/ReactiveCocoa'
Merge pull request #8 from mileswright/master

Merge in Reactive Cocoa changes
Adding read_state to CKIActivityStreamItem
Merge remote-tracking branch 'instructure/CanvasKit/ReactiveCocoa'
Merge pull request #9 from jarsen/master

Stream item updates
Merge remote-tracking branch 'instructure/CanvasKit/ReactiveCocoa'