line 1 column 1 - Warning: missing <!DOCTYPE> declaration
line 6 column 319 - Info: missing optional end tag </li>
line 6 column 378 - Warning: inserting implicit <ul>
line 6 column 378 - Info: missing optional end tag </li>
line 6 column 412 - Info: missing optional end tag </li>
line 6 column 456 - Info: missing optional end tag </li>
line 6 column 519 - Info: missing optional end tag </li>
line 6 column 574 - Info: missing optional end tag </li>
line 6 column 665 - Info: missing optional end tag </li>
line 6 column 690 - Info: missing optional end tag </li>
line 6 column 754 - Info: missing optional end tag </li>
line 6 column 842 - Info: missing optional end tag </li>
line 6 column 378 - Warning: missing </ul> before </li>
line 6 column 1046 - Warning: discarding unexpected </li>
line 6 column 1051 - Warning: discarding unexpected </li>
line 6 column 1056 - Warning: discarding unexpected </li>
line 6 column 1061 - Warning: discarding unexpected </li>
line 6 column 1066 - Warning: discarding unexpected </li>
line 6 column 1071 - Warning: discarding unexpected </li>
line 6 column 1076 - Warning: discarding unexpected </li>
line 6 column 1081 - Warning: discarding unexpected </li>
line 6 column 1086 - Warning: discarding unexpected </li>
Info: Document content looks like HTML5
Tidy found 12 warnings and 0 errors!

About HTML Tidy: https://github.com/htacg/tidy-html5
Bug reports and comments: https://github.com/htacg/tidy-html5/issues
Official mailing list: https://lists.w3.org/Archives/Public/public-htacg/
Latest HTML specification: http://dev.w3.org/html5/spec-author-view/
Validate your HTML documents: http://validator.w3.org/nu/
Lobby your company to join the W3C: http://www.w3.org/Consortium

Do you speak a language other than English, or a different variant of 
English? Consider helping us to localize HTML Tidy. For details please see 
https://github.com/htacg/tidy-html5/blob/master/README/LOCALIZE.md
