list: suggest MatchN for non-concrete values in Contains doc
I tried to use Contains with a non-concrete value and
it did not work.
Roger suggested I could use MatchN.
Signed-off-by: Maximilian Gaß <m.gass@babiel.com>
Change-Id: Id359d8a745c19384ffd06d1d452d2dfd6a6a6964
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1235212
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>
Unity-Result: CUE porcuepine <cue.porcuepine@gmail.com>
authored by