docs(form): add code comments to add clarity

Author: evansiroky

lib/actions/form.js

@@ -46,7 +46,12 @@ export function formChanged () {
     dispatch(changingForm())
     const otpState = getState().otp
     const {autoPlan, debouncePlanTimeMs} = otpState.config
+
+    // check if a trip plan should be made
     if (autoPlan && queryIsValid(otpState)) {
+      // trip plan should be made
+
+      // check if debouncing function needs to be (re)created
       if (!debouncedPlanTrip || lastDebouncePlanTimeMs !== debouncePlanTimeMs) {
         debouncedPlanTrip = debounce(() => dispatch(planTrip()), debouncePlanTimeMs)
         lastDebouncePlanTimeMs = debouncePlanTimeMs