making webNavigation transitionType compat data clearer and more deta… (#3132)
making webNavigation transitionType compat data clearer and more deta… (#3132)

* making webNavigation transitionType compat data clearer and more detailed

* adding descriptions in for the transition types

chrisdavidmills/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data