Replace outdated import in the documentation

README.md

@@ -3,7 +3,7 @@
 [![CI/CD](https://img.shields.io/badge/CI-CD-brightgreen)](https://build.caraus.tech/go/pipelines)
 [![Dub version](https://img.shields.io/dub/v/tanya.svg)](https://code.dlang.org/packages/tanya)
 [![Dub downloads](https://img.shields.io/dub/dt/tanya.svg)](https://code.dlang.org/packages/tanya)
-[![License](https://img.shields.io/badge/license-MPL_2.0-blue.svg)](https://raw.githubusercontent.com/caraus-ecms/tanya/master/LICENSE)
+[![License: MPL 2.0](https://img.shields.io/badge/license-MPL_2.0-blue.svg)](https://opensource.org/licenses/MPL-2.0)
 
 Tanya is a general purpose library for D programming language.
 
@@ -13,9 +13,7 @@ Garbage Collector heap. Everything in the library is usable in @nogc code.
 Tanya provides data structures and utilities to facilitate painless systems
 programming in D.
 
-* [API Documentation](https://docs.caraus.io/tanya)
-* [Contribution guidelines](CONTRIBUTING.md)
-
+- [API Documentation](https://docs.caraus.io/tanya)
 
 ## Overview
 
@@ -193,4 +191,4 @@ aren't supported
 ## Feedback
 
 Any feedback about your experience with tanya would be greatly appreciated. Feel free to
-[contact me](mailto:info@caraus.de).
+[contact me](mailto:belka@caraus.de).