Link to former N3949 proposal removed and Library Fundamentals TS3 added

(#172).

README.md

@@ -5,12 +5,12 @@
 [![License](https://img.shields.io/badge/license-MIT-yellow.svg)](LICENSE)
 ![C++](https://img.shields.io/badge/c++-17-green.svg)
 
-Implementation of *Scope Guards* (`scope_exit`, `scope_success`, `scope_fail`) and `unique_resource` as proposed in [**P0052R10**][2] (former [N3949][1]).
+Implementation of *Scope Guards* (`scope_exit`, `scope_success`, `scope_fail`) and `unique_resource` as proposed in [**P0052R10**][1].
 
 
 ## Compatibility
 
-This implementation conforms to [P0052][2], except:
+This implementation conforms to [P0052][1], except:
 
 ###### Namespace
 The namespace `sr` is used instead of `std`.
@@ -21,9 +21,8 @@ The filenames contain a `.h` extension. To enable the compatible header as speci
 
 ## Documentation
 
-- [*P0052R10 - Generic Scope Guard and RAII Wrapper for the Standard Library*][2] (P. Sommerlad, A. L. Sandoval, E. Niebler, D. Krügler)
-- [*N3949 - Scoped Resource - Generic RAII Wrapper for the Standard Library*][1] (P. Sommerlad, A. L. Sandoval)
-
+- [*P0052R10 - Generic Scope Guard and RAII Wrapper for the Standard Library*][1] (P. Sommerlad, A. L. Sandoval, E. Niebler, D. Krügler)
+- [*N4853 – C++ Extensions for Library Fundamentals, Version 3*][2] (T. Köppe)
 
 
 ## License
@@ -51,5 +50,5 @@ The filenames contain a `.h` extension. To enable the compatible header as speci
     SOFTWARE.
 
 
-[1]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3949.pdf
-[2]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p0052r10.pdf
+[1]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p0052r10.pdf
+[2]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/n4853.html