update 文档增加演示图例

疯狂的狮子li

2021-05-26 454a07b7756cd564a02b52606589ee96a66fe8be

 ruoyi-ui/src/assets/styles/sidebar.scss

@@ -135,9 +135,6 @@
          margin-left: 20px;
        }

        .el-submenu__icon-arrow {
          display: none;
        }
      }
    }