Added link to typescript stack

Author: SchettlerKoehler

modules/ROOT/pages/architecture/layered_architecture.adoc

@@ -47,7 +47,7 @@ It is divided into the same business components as the backend with only the _cl
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 Front-end services are not in focus of the Java stack. 
 The client layer is added for completeness.
-devonfw supports clients based on single page applications with Angular with the typescript stack.
+devonfw supports clients based on single page applications with Angular with the link:https://devonfw.com/docs/typescript/current/[typescript stack].
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 ==== Dependencies