doc(overview): link directly to given

Author: robstoll

docs/docs/reference/overview.md

@@ -31,7 +31,7 @@ These new constructs directly model core features of DOT, higher-kinded types, a
 These constructs replace existing constructs with the aim of making the language safer and simpler to use, and to promote uniformity in code style.
 
  - [Trait Parameters](other-new-features/trait-parameters.md) replace [early initializers](dropped-features/early-initializers.md) with a more generally useful construct.
- - [Given Instances](contextual/delegates.md)
+ - [Given Instances](contextual/givens.md)
    replace implicit objects and defs, focussing on intent over mechanism.
  - [Using Clauses](contextual/using-clauses.md) replace implicit parameters, avoiding their ambiguities.
  - [Extension Methods](contextual/extension-methods.md) replace implicit classes with a clearer and simpler mechanism.