diff --git a/aprendizations/renderer_markdown.py b/aprendizations/renderer_markdown.py
index c504126..0bc428a 100644
--- a/aprendizations/renderer_markdown.py
+++ b/aprendizations/renderer_markdown.py
@@ -2,19 +2,19 @@
 # third party libraries
 import mistune
 from mistune.plugins.math import math
+from mistune.plugins.table import table
 
 from pygments import highlight
 from pygments.lexers import get_lexer_by_name
-# from pygments.formatters import HtmlFormatter
 from pygments.formatters import html
 
-class HighlightRenderer(mistune.HTMLRenderer):
+class Renderer(mistune.HTMLRenderer):
     def block_code(self, code, info=None):
-        if info:
+        if info is not None:
             lexer = get_lexer_by_name(info, stripall=True)
             formatter = html.HtmlFormatter()
             return highlight(code, lexer, formatter)
-        return '<pre><code>' + mistune.escape(code) + '</code></pre>'
+        return f'<pre><code>{mistune.escape(code)}</code></pre>'
 
     def image(self, text, url, title=None):
         text = mistune.escape(text, quote=True)
@@ -22,6 +22,5 @@ class HighlightRenderer(mistune.HTMLRenderer):
         return (f'<img src="/file/{url}" alt="{text}" title="{title}"'
                 f'class="img-fluid">')
 
-md_to_html = mistune.create_markdown(renderer=HighlightRenderer(), plugins=[math])
-# FIXME error "argument HighlightRenderer cannot be assigned to parameter
-# renderer of type str. HighlightRenderer is incimpatible with str"
+renderer = Renderer()
+md_to_html = mistune.Markdown(renderer, plugins=[math, table])
--
libgit2 0.21.2