Add note about error bars
Add note about error bars

jonhoo/volley,methane/volley,bossjones/volley,bossjones/volley,jonhoo/volley,jonhoo/volley,methane/volley,jonhoo/volley,methane/volley,methane/volley,bossjones/volley,jonhoo/volley,methane/volley,bossjones/volley,bossjones/volley