Fixes: #249;

    DONE:
    - Fixed acceptance tests (links/, atx_headers, blockquotes, block_ial, comment, div, empty, ~~emph~~, escape, fenced, footnotes,
         hard_linebreaks, horizontal_rules, html, indented, inline_code, inline_ial, line_breaks, list_and_blocks, list_indent, list,
         paragraph, reflink, setext, tables, utf8)
    - Fixed doctests
    - Fixed and (re)moved regression tests (some are remaining on purpose for now)
    - Fixed regressions on `acceptance/html` tests
    - Checked smarty pants output is tested in `acceptance/html` tests
    - Fixed tests
    - Dead Code Elimination (html_renderer, inline, more checks in PR Review)
    - Doc updated
    - Add tests from real test data

    - Check for INLINE CODE possibilities => no conclusive performance gain

test/performance/list_test.exs

@@ -14,6 +14,7 @@ defmodule Performance.ListTest do
       ])
       Earmark.as_html!(input)
     end
+    # Working since #249 which made list processing O(Prod(elements by level)) instead of exponential
     test "99_000 lines" do
       input = make_list([
         {"1.", 30}, {"-", 5}, {"23.", 10}, {"*", 6}, {"-", 11}