Fix the issues link in the README.
Fix the issues link in the README.

daam/HTML_CodeSniffer,ironikart/HTML_CodeSniffer,daam/HTML_CodeSniffer,adelevie/HTML_CodeSniffer,daam/HTML_CodeSniffer,squizlabs/HTML_CodeSniffer,adelevie/HTML_CodeSniffer,squizlabs/HTML_CodeSniffer,lwright-sq/HTML_CodeSniffer,lwright-sq/HTML_CodeSniffer,ironikart/HTML_CodeSniffer,squizlabs/HTML_CodeSniffer,adelevie/HTML_CodeSniffer,telesma/HTML_CodeSniffer,ironikart/HTML_CodeSniffer,lwright-sq/HTML_CodeSniffer,telesma/HTML_CodeSniffer,telesma/HTML_CodeSniffer