**Description of the issue** <!-- Please explain briefly what is the problem. If it is about a GitHub project, please include its URL. --> This repo seems to contain help text references to dead links that links to http://jslinterrors.com, that based on https://github.com/jamesallardice/jslint-error-explanations/issues/39#issuecomment-250028253 seems to have been lost in 2016, and have since been used for malicious/phishing/ads. It's in these places: https://github.com/github/codeql/blob/main/javascript/ql/src/LanguageFeatures/DeleteVar.qhelp#L41 https://github.com/github/codeql/blob/main/javascript/ql/src/Expressions/ExprHasNoEffect.qhelp#L56