feat:工具栏新增保存按钮

package.json

@@ -1,7 +1,7 @@
 {
   "name": "vue-meditor",
   "description": "一款使用marked和highlight.js开发的一款markdown编辑器",
-  "version": "1.4.1",
+  "version": "1.4.2",
   "author": "zhaoxuhui<1258835133@qq.com>",
   "license": "MIT",
   "main": "build/index.js",

src/markdown/index.vue

@@ -97,7 +97,7 @@
             <li v-if="tools.clear" name="清空" @click="value=''">
                 <span class="iconfont icon-clear"></span>
             </li>
-            <li  v-if="tools.save" name="保存" @click="value=''">
+            <li  v-if="tools.save" name="保存" @click="handleSave">
                 <span class="iconfont icon-save"></span>
             </li>
             <li :name="scrolling?'同步滚动:开':'同步滚动:关'">