Update _config.yml

Author: programmation

_config.yml

@@ -53,7 +53,7 @@ baseurl: ""
 markdown: kramdown
 redcarpet:
   extensions: ["no_intra_emphasis", "fenced_code_blocks", "autolink", "tables", "with_toc_data"]
-highlighter: pygments
+highlighter: rouge
 permalink: /:title/
 
 # The release of Jekyll Now that you're using