Use the http: AsciiDoc macro instead of link:http:.
Identify the supported version of Lua. Mention the related bug 742.
"Help | About" nowadays groups scripting backends under "Scripting".
Document proxy_for_hook.
The enable_systems_functions function has been removed.
The setlocale function is nowadays called os.setlocale, and it does
affect the operation of ELinks.
The execute function does not return the exit code.
Document tmpname, edit_bookmark_dialog, xdialog, set_option, get_option.
Document elinks_home.
However, I did not update the example Lua scripts.