feat(home): home profile title support HTML format (#356)

exampleSite/config.toml

@@ -142,7 +142,7 @@ enableEmoji = true
           gravatarEmail = ""
           # URL of avatar shown in home page
           avatarURL = "/images/avatar.png"
-          # title shown in home page
+          # title shown in home page (HTML format is supported)
           title = ""
           # subtitle shown in home page
           subtitle = "A Clean, Elegant but Advanced Hugo Theme"
@@ -342,7 +342,7 @@ enableEmoji = true
           gravatarEmail = ""
           # 主页显示头像的 URL
           avatarURL = "/images/avatar.png"
-          # 主页显示的网站标题
+          # 主页显示的网站标题 (支持 HTML 格式)
           title = ""
           # 主页显示的网站副标题
           subtitle = "一个简洁、优雅且高效的 Hugo 主题"
@@ -538,7 +538,7 @@ enableEmoji = true
           gravatarEmail = ""
           # URL of avatar shown in home page
           avatarURL = "/images/avatar.png"
-          # title shown in home page
+          # title shown in home page (HTML format is supported)
           title = ""
           # subtitle shown in home page
           subtitle = "Un thème Hugo simple, élégant et efficace"