Added migration guide for 0.4 -> 0.5
Added migration guide for 0.4 -> 0.5

rlugojr/VivaGraphJS,aigeano/recommendation-visualizer,aigeano/recommendation-visualizer,hochshi/VivaGraphJS,dikshay/VivaGraphJS,dikshay/VivaGraphJS,rshipp/VivaGraphJS,rshipp/VivaGraphJS,rlugojr/VivaGraphJS,hochshi/VivaGraphJS