Success! Final stack:
  [(Lean.Doc.Syntax.blockquote
    ">"
    [(Lean.Doc.Syntax.para
      "para{"
      [(Lean.Doc.Syntax.text
        (str "\"I like quotes\""))]
      "}")
     (Lean.Doc.Syntax.ul
      "ul{"
      [(Lean.Doc.Syntax.li
        "*"
        [(Lean.Doc.Syntax.para
          "para{"
          [(Lean.Doc.Syntax.text
            (str "\"Also with lists in them\""))]
          "}")])]
      "}")])
   (Lean.Doc.Syntax.para
    "para{"
    [(Lean.Doc.Syntax.text (str "\"Abc\""))]
    "}")]
All input consumed.