feat: allow package names in interactive info commands

README.md

@@ -131,7 +131,12 @@ package (pacman backend with paru or yay, see below) and a space on every other
 One line, whitespace-separated tokens; `N` is the number in brackets. Numbers are
 stable for the whole session (rows that leave the list leave a gap). Every token
 of a line is checked for syntax first: an unknown token rejects the line. A number
-that is not listed prints an error and the remaining commands still run.
+or package name that is not listed prints an error and the remaining commands still run.
+For `?` and `??`, a listed package name can replace the number, for example
+`su-dummy-a?` or `su-dummy-a??`. A digits-only reference is interpreted as a number.
+Names are restricted to these information commands to avoid unnecessary parsing
+complexity: package names may contain `-` or end in `x`, which conflicts with the
+other command suffixes.
 
 | token | action |
 |-------|--------|