docs: update

Author: WeilinerL

README.md

@@ -282,7 +282,7 @@ Notice, when we use in general JS files, we can't make props be reactive.
 
 ### batchDestroy
 
-We can use the `batchDestroy` method provided by `vue-create-api` to uniformly destroy instances generated by non-Vue context calls (this.$createXxx). For example, we can perform unified destruction when switching routes:
+We can use the `batchDestroy` method provided by `vue-create-api` to destroy all instances uniformly. For example, we can destroy them uniformly when the route is switched:
 
 ```js
 import Vue from 'vue'

README_zh-CN.md

@@ -278,7 +278,7 @@ Hello.$create(config, renderFn)
 
 ### 批量销毁
 
-我们可以通过`vue-create-api`提供的`batchDestroy`方法统一销毁由非Vue上下文调用（this.$createXxx）产生的实例，例如我们可以在路由切换的时候进行统一销毁：
+我们可以通过`vue-create-api`提供的`batchDestroy`方法统一销毁所有实例，例如我们可以在路由切换的时候进行统一销毁：
 
 ```js
 import Vue from 'vue'