Merge pull request #10459 from costa100/patch-1

Update context-functions-spec.md

Author: nicolasstucki

docs/docs/reference/contextual/context-functions-spec.md

@@ -19,7 +19,8 @@ Context function types associate to the right, e.g.
 
 Context function types are shorthands for class types that define `apply`
 methods with context parameters. Specifically, the `N`-ary function type
-`T1, ..., TN => R` is a shorthand for the class type
+
+`T1, ..., TN ?=> R` is a shorthand for the class type
 `ContextFunctionN[T1, ..., TN, R]`. Such class types are assumed to have the following definitions, for any value of `N >= 1`:
 
 ```scala