记录加入时间更改成活动时间

src/views/modules/volunteer/VolunteerProjects/record.vue

@@ -7,7 +7,7 @@
             </el-option>
           </el-select>
         </el-form-item>
-        <el-form-item label="加入时间" label-width="100px">
+        <el-form-item label="活动时间" label-width="100px">
           <el-date-picker v-model="formData.createdTimeFrom" type="datetime" placeholder="开始时间"
             format="yyyy-MM-dd HH:mm:ss" value-format="yyyy-MM-dd HH:mm:ss" style="width: 200px;">
           </el-date-picker>