Sorry, I am unable to validate this document because on line 23 it contained one or more bytes that I cannot interpret as utf-8 (in other words, the bytes found are not valid values in the specified Character Encoding). Please check both the content of the file and the character encoding indication.
The error was: utf8 “\x92” does not map to Unicode
I searched my page and do not see \x92 anywhere on the page.
Looks like the file has been saved as Windows-1252, and the server declares the encoding to be UTF-8.
Code point 0x92 (146 decimal) is the right single quotation mark, or apostrophe (’) in Windows-1252. It’s an invalid character in ISO 8859 and in UTF-8, since the 0x80-0x9F range is reserved for C1 control characters.
Replace the character with the proper Unicode apostrophe (U+2019) or escape it as ’.