Support docsify sidebar catalog expand and collapse
Firstly, make sure that the loadSidebar config is enabled，and the Markdown file _sidebar.md is provided in the root directory.
Then insert script into document just like the official plugins's usage
<script> window.$docsify = { loadSidebar: true, alias: { '/.*/_sidebar.md': '/_sidebar.md', }, subMaxLevel: 3, ... sidebarDisplayLevel: 1, // set sidebar display level } </script> <script src="//cdn.jsdelivr.net/npm/docsify/lib/docsify.min.js"></script> <!-- plugins --> <script src="//cdn.jsdelivr.net/npm/docsify-sidebar-collapse/dist/docsify-sidebar-collapse.min.js"></script>- [数据结构与算法](/general/algorithm/README.md) - 数据结构 - [stack](/general/algorithm/data-structures/stack/README.zh-CN.md) - [queue](/general/algorithm/data-structures/queue/README.zh-CN.md) - list - [linked-list](/general/algorithm/data-structures/linked-list/README.zh-CN.md) - [doubly-linked-list](/general/algorithm/data-structures/doubly-linked-list/README.zh-CN.md) - [tree](/general/algorithm/data-structures/tree/README.zh-CN.md) - [binary search tree](/general/algorithm/data-structures/tree/binary-search-tree/README.md) - [red black tree](/general/algorithm/data-structures/tree/red-black-tree/README.md) - [heap](/general/algorithm/data-structures/heap/README.zh-CN.md) - [hash-table](/general/algorithm/data-structures/hash-table/README.md) - [graph](/general/algorithm/data-structures/graph/README.zh-CN.md) - 算法 - [排序算法](/general/algorithm/algorithms/sorting.md) - [设计模式](/general/design-pattern/README.md) - 网络 - [协议模型](/general/network/protocol-model.md) - [TCP/IP](/general/network/tcp-ip.md) -
arrow style
<link rel="stylesheet" href="//cdn.jsdelivr.net/npm/docsify-sidebar-collapse/dist/sidebar.min.css" />
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folder style
<link rel="stylesheet" href="//cdn.jsdelivr.net/npm/docsify-sidebar-collapse/dist/sidebar-folder.min.css" />
