Add German translation

Author: ryanmcdermott

README.md

@@ -2160,5 +2160,6 @@ This is also available in other languages:
 
   - ![br](https://raw.githubusercontent.com/gosquared/flags/master/flags/flags/shiny/24/Brazil.png) **Brazilian Portuguese**: [fesnt/clean-code-javascript](https://github.com/fesnt/clean-code-javascript)
   - ![cn](https://raw.githubusercontent.com/gosquared/flags/master/flags/flags/shiny/24/China.png) **Chinese**: [alivebao/clean-code-js](https://github.com/alivebao/clean-code-js)
-  
-**[⬆ back to top](#table-of-contents)**
+  - ![de](https://raw.githubusercontent.com/gosquared/flags/master/flags/flags/shiny/24/Germany.png) **German**: [marcbruederlin/clean-code-javascript](https://github.com/marcbruederlin/clean-code-javascript)
+
+**[⬆ back to top](#table-of-contents)**