Added notes about saving/loading the data parameter.
Added notes about saving/loading the data parameter.

XadillaX/node-kdtree,XadillaX/node-kdtree,XadillaX/node-kdtree,XadillaX/node-kdtree,justinethier/node-kdtree,justinethier/node-kdtree,justinethier/node-kdtree,justinethier/node-kdtree