fix: README.md architecture link not working (#155)

* fix: README.md architecture link not working

* Fix image link formatting in README.md

* Fix image link in README.md

Author: christian-kreuzberger-dtx

README.md

@@ -25,7 +25,7 @@ Bring real-time observability data directly into your development workflow.
 
 Please contact us via [GitHub Issues](https://github.com/dynatrace-oss/dynatrace-mcp/issues) if you have feature requests, questions, or need help.
 
-<img width="1046" alt="image" src="/assets/dynatrace-mcp-arch.png" />
+![Architecture](https://github.com/dynatrace-oss/dynatrace-mcp/blob/main/assets/dynatrace-mcp-arch.png?raw=true)
 
 ## Use cases