测试giscus评论功能

1. 2022-10-31 测试可用

<script src="https://giscus.app/client.js"
                    data-repo="lengyefenghan/blog"
                    data-repo-id="R_kgDOHJIjrA"
                    data-category="Comments"
                    data-category-id="DIC_kwDOHJIjrM4CSMzr"
                    data-mapping="pathname"
                    data-strict="0"
                    data-reactions-enabled="1"
                    data-emit-metadata="1"
                    data-input-position="top"
                    data-theme="light"
                    data-lang="zh-CN"
                    crossorigin="anonymous"
                    async>
                </script>

2. 测试嵌入模板

        file:hemes/meme/layouts/partials/components/comments.html
        {{ if .Site.Params.enableGiscus }}
            <div id="giscus">
                <script src="https://giscus.app/client.js"
                    data-repo="lengyefenghan/blog"
                    data-repo-id="R_kgDOHJIjrA"
                    data-category="Comments"
                    data-category-id="DIC_kwDOHJIjrM4CSMzr"
                    data-mapping="pathname"
                    data-strict="0"
                    data-reactions-enabled="1"
                    data-emit-metadata="1"
                    data-input-position="top"
                    data-theme="light"
                    data-lang="zh-CN"
                    crossorigin="anonymous"
                    async>
                </script>
            </div>
        {{ end }}