add more summary views, e.g. mini TOC, top5 commented list

Currently only "Latest comments" is shown.

I'd like a TOC (mini list of articles I wrote already) displayed in my blog (1).
I don't want readers to first scroll through everything, they should be at first guided by selecting the article title which sounds interesting for them.

I could create manually a TOC, but that just costs me time

(1) also a top5 commented posts view would be nice.
Let's imagine those 3 views exist (lastest comments, toc, top5): then they could be shown at first just with 1 line, and - on click - enlarged, showing their content.

此 issue 未指定檔案、測試或進入點，因此首先要找到部落格現有的 "Latest comments" 檢視及其文章列表程式碼。要求的結果是一個迷你目錄、一個留言數最多的五篇文章檢視，以及點擊後展開的精簡單行區段。

由索引模型根據 Issue 內容生成。