Added link for Gabriel Dos Reis' talk...

Added link for Gabriel Dos Reis' talk on Contracts for Dependable C++...

Author: RicoAntonioFelix

talks/README.md

@@ -4,7 +4,7 @@ Here are video recordings of those talks:
 - [Keynote: Writing Good C++ 14 (Bjarne Stroustrup)](https://www.youtube.com/watch?t=9&v=1OEu9C51K2A)
 - [Writing good C++ 14 By Default (Herb Sutter)](https://www.youtube.com/watch?v=hEx5DNLWGgA])
 - [Large Scale C++ With Modules: What You Should Know (Gabriel Dos Reis)](https://www.youtube.com/watch?v=RwdQA0pGWa4)
-- Contracts for Dependable C++ (Gabriel Dos Reis)
+- [Contracts for Dependable C++ (Gabriel Dos Reis)](https://www.youtube.com/watch?v=Hjz1eBx91g8)
 - [Static analysis and C++: more than lint (Neil MacIntosh)](https://www.youtube.com/watch?v=rKlHvAw1z50)
 - A few good types: Evolving `array_view` and `string_view` for safe C++ code (Neil MacIntosh):