Hi,
I notice the html export (actually, the HTML URL anchor part) of info
link is incorrect in some cases, for example
in (info "(org) Built-in table editor"), the corresponding org link is
[[info:org#Built-in%20table%20editor][info:org#Built-in table editor]]
org exports it to
https://www.gnu.org/software/emacs/manual/html_mono/org.html#Built-in-table-editor
but the correct one is
https://www.gnu.org/software/emacs/manual/html_mono/org.html#Built_002din-table-editor
I have submitted a patch to fix this.