tweak spelling mistake

src/directive/clipboard/clipboard.js

@@ -1,7 +1,7 @@
 // Inspired by https://github.com/Inndy/vue-clipboard2
 const Clipboard = require('clipboard')
 if (!Clipboard) {
-  throw new Error('you shold npm install `clipboard` --save at first ')
+  throw new Error('you should npm install `clipboard` --save at first ')
 }
 
 export default {

src/directive/el-dragDialog/drag.js

@@ -20,7 +20,7 @@ export default{
       const disY = e.clientY - dialogHeaderEl.offsetTop
 
       const dragDomWidth = dragDom.offsetWidth
-      const dragDomheight = dragDom.offsetHeight
+      const dragDomHeight = dragDom.offsetHeight
 
       const screenWidth = document.body.clientWidth
       const screenHeight = document.body.clientHeight
@@ -29,7 +29,7 @@ export default{
       const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth
 
       const minDragDomTop = dragDom.offsetTop
-      const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight
+      const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomHeight
 
       // 获取到的值带px 正则匹配替换
       let styL = getStyle(dragDom, 'left')

src/directive/waves/waves.js

@@ -6,7 +6,7 @@ export default{
       const customOpts = Object.assign({}, binding.value)
       const opts = Object.assign({
         ele: el, // 波纹作用元素
-        type: 'hit', // hit点击位置扩散center中心点扩展
+        type: 'hit', // hit 点击位置扩散 center中心点扩展
         color: 'rgba(0, 0, 0, 0.15)' // 波纹颜色
       }, customOpts)
       const target = opts.ele