feat: add detection of the theme version and Hugo version (#173)

* feat: add detection of the theme version and Hugo version

* fix: hugo.IsProduction is incompatible in Hugo v0.62.0

exampleSite/content/posts/theme-documentation-basics.zh-cn.md

@@ -192,7 +192,7 @@ hugo
   defaultTheme = "auto"
   # 公共 git 仓库路径，仅在 enableGitInfo 设为 true 时有效
   gitRepo = ""
-  # LoveIt :(fas fa-greater-than-equal): :(far fa-file-archive): 0.1.1
+  # {{< version 0.1.1 >}}
   # 哪种哈希函数用来 SRI, 为空时表示不使用 SRI ("sha256", "sha384", "sha512", "md5")
   fingerprint = ""
   # 页面头部导航栏信息
@@ -351,13 +351,13 @@ hugo
     enable = true
     # Disqus 评论系统设置 (https://disqus.com/)
     [params.comment.disqus]
-      # LoveIt :(fas fa-greater-than-equal): :(far fa-file-archive): 0.1.1
+      # {{< version 0.1.1 >}}
       enable = false
       # Disqus 的 shortname，用来在文章中启用 Disqus 评论系统
       shortname = ""
     # Gitalk 评论系统设置 (https://github.com/gitalk/gitalk)
     [params.comment.gitalk]
-      # LoveIt :(fas fa-greater-than-equal): :(far fa-file-archive): 0.1.1
+      # {{< version 0.1.1 >}}
       enable = false
       owner = ""
       repo = ""