line 12 column 19 - Info: tidy replaced adjacent "-" with "="
line 14 column 19 - Info: tidy replaced adjacent "-" with "="
line 16 column 50 - Info: tidy replaced adjacent "-" with "="
line 19 column 5 - Info: tidy replaced adjacent "-" with "="
line 20 column 10 - Info: tidy replaced adjacent "-" with "="
line 21 column 11 - Info: tidy replaced adjacent "-" with "="
line 22 column 5 - Info: tidy replaced adjacent "-" with "="
line 23 column 5 - Info: tidy replaced adjacent "-" with "="
line 24 column 1 - Warning: dropping a possible comment due to a missing hyphen
Info: Document content looks like HTML5
Tidy found 1 warning 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: https://html.spec.whatwg.org/multipage/
Validate your HTML documents: https://validator.w3.org/nu/
Lobby your company to join the W3C: https://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