feat: update images upload function

更新图片上传功能，使用新图床，速度更快，感谢图壳

Author: yanglbme

README.md

@@ -38,6 +38,8 @@ Markdown 文档自动即时渲染为微信图文，让你不再为微信文章
 
 ![custom](./assets/images/doocs-md-custom-css.gif)
 
+![doocs-md-upload-image](./assets/images/doocs-md-upload-image.gif)
+
 ## 示例文章
 - [ES6 特性快速扫盲](https://mp.weixin.qq.com/s/I3EzOO0skf8xDCGtyYM5Lg)
 - [GitHub 项目持续本地化，交给它来做，准没错！](https://mp.weixin.qq.com/s/KO4xHr4EI0YfjF0hiT3pbw)

assets/images/doocs-md-upload-image.gif

@@ -100,7 +100,6 @@ let app = new Vue({
     }
   },
   methods: {
-
     renderWeChat(source) {
       let output = marked(source, { renderer: this.wxRenderer.getRenderer(this.status) });
       // 去除第一行的 margin-top
@@ -148,7 +147,7 @@ let app = new Vue({
       if (response.success) {
         // 上传成功，获取光标
         const cursor = this.editor.getCursor();
-        const imageUrl = response.data.url
+        const imageUrl = response.data
         const markdownImage = `![](${imageUrl})`
         // 将 Markdown 形式的 URL 插入编辑框光标所在位置
         this.editor.replaceSelection(`\n${markdownImage}\n`, cursor);
@@ -157,9 +156,7 @@ let app = new Vue({
           message: '图片插入成功',
           type: 'success'
         });
-
         this.refresh();
-
       } else {
         // 上传失败
         this.$message({
@@ -172,13 +169,6 @@ let app = new Vue({
     failed(error, file, fileList) {
       console.log(error)
     },
-    uploading(event, file, fileList) {
-      this.$message({
-        showClose: true,
-        message: '图片上传中...',
-        type: 'info'
-      });
-    },
     // 刷新右侧预览
     refresh() {
       this.output = this.renderWeChat(this.editor.getValue(0));

assets/scripts/editor.js

@@ -43,10 +43,9 @@
     <el-container>
       <el-header class="top">
         <!-- 图片上传 -->
-        <el-upload action="https://cors-anywhere.herokuapp.com/https://sm.ms/api/v2/upload"
-          headers="{'Content-Type': 'multipart/form-data'}" :show-file-list="false" :multiple="false"
-          accept=".jpg,.jpeg,.png,.gif" :limit="1" name="smfile" :on-success="uploaded" :on-error="failed"
-          :on-progress="uploading">
+        <el-upload action="https://imgkr.com/api/files/upload"
+          headers="{'Content-Type': 'multipart/form-data'}" :show-file-list="false" :multiple="true"
+          accept=".jpg,.jpeg,.png,.gif" :limit="5" name="file" :on-success="uploaded" :on-error="failed">
           <el-tooltip class="item" effect="dark" content="点击上传图片" placement="bottom-start">
             <i class="el-icon-upload" size="medium">&nbsp;</i>
           </el-tooltip>