feat 完善注释

src/directives/debounce.ts

@@ -13,7 +13,6 @@ function normalize(value: DebounceValue): DebounceBinding {
   return typeof value === 'function' ? { handler: value } : value
 }
 
-/** v-debounce 防抖点击：v-debounce="fn" 或 v-debounce="{ handler: fn, delay: 500 }" */
 const debounce: Directive<Element, DebounceValue> = {
   mounted(el, binding) {
     const { handler, delay = 300 } = normalize(binding.value)