Fix unstable embedded template literals (#13532)

commands.md

@@ -276,13 +276,15 @@ It doesn't make sense to apply `indentIfBreak` to the current group because "ind
 _Added in v2.3.0_
 
 ```ts
-declare function label(label: string, doc: Doc): Doc;
+declare function label(label: any, doc: Doc): Doc;
 ```
 
-Mark a doc with a string label. This doesn't affect how the doc is printed, but can be useful for heuristics based on doc introspection.
+Mark a doc with an arbitrary truthy value. This doesn't affect how the doc is printed, but can be useful for heuristics based on doc introspection.
 
 E.g., to decide how to print an assignment expression, we might want to know whether its right-hand side has been printed as a method call chain, not as a plain function call. If the method chain printing code uses `label` to mark its result, checking that condition can be as easy as `rightHandSideDoc.label === 'method-chain'`.
 
+If the `label` argument is falsy, `doc` is returned as is, without wrapping.
+
 ### `hardlineWithoutBreakParent` and `literallineWithoutBreakParent`
 
 _Added in v2.3.0_