Update level-6.mdx

docs/level-6.mdx

@@ -23,7 +23,7 @@ import DiscardModulation from "./level-6/discard-modulation.yml";
 - In some special situations, _Tempo Clues_ have enough value to justify giving them:
   1. When everyone knows it gets two or more clued cards to play (in total across all hands).
   1. When the clued card is not a 5 and it is "out of order" (meaning that it is not possible for a _Prompt_ to get the card played at this moment in time).
-  1. When playing the clued card would "unlock" someone's hand (see the section on _Locked Hands_ later on).
+  1. When playing the clued card would "unlock" someone's hand. (For level 9 players, see the section on [_Locked Hands_](level-9.mdx#the-locked-hand-save-lhs).)
 - If a _Tempo Clue_ is given in any of these situations, it is considered to be "valuable".
 - _Valuable Tempo Clues_ can be given at any time. They don't have any special rules associated with them and they are treated in exactly the same way a "normal" _Play Clue_ is.
 - When determining if a _Tempo Clue_ is _Valuable_, it should only be evaluated on the turn immediately after the clue is given. (This helps keeps things simple and prevents desynchronization.)