docs(README): add demo paragraph

vojtechmares · vojtechmares · commit 56396b97c793 · 2025-03-11T13:46:17.000+01:00
diff --git a/README.md b/README.md
@@ -27,3 +27,7 @@ dotnet build
 ```bash
 docker build -t dotnet-demo-api .
 ```
+
+## Some other change for demo
+
+Demo.
