删除gitbook左侧目录底部的gitbook-link

C:\Users\username\.gitbook\versions\3.2.3\node_modules\gitbook-plugin-theme-default\_layouts\website

找到summary.html模板文件，修改

    <li>
        <a href="https://www.gitbook.com" target="blank" class="gitbook-link">
            GITBOOK_LINK
        </a>
    </li>

<li>

GITBOOK_LINK

</a>

</li>