fix symlink in README
fix symlink in README

alecjacobson/PathPicker,pallavagarwal07/PathPicker,facebook/PathPicker,alecjacobson/PathPicker,alecjacobson/PathPicker,Shenil/PathPicker,pallavagarwal07/PathPicker,alecjacobson/PathPicker,Shenil/PathPicker,alecjacobson/PathPicker,facebook/PathPicker,pallavagarwal07/PathPicker,facebook/PathPicker,slackorama/PathPicker,facebook/PathPicker,slackorama/PathPicker,slackorama/PathPicker,Shenil/PathPicker,pallavagarwal07/PathPicker,Shenil/PathPicker,slackorama/PathPicker,Shenil/PathPicker