Update architecture.md to remove expansion instructions

Author: Alexandrbig1

docs/architecture.md

@@ -23,7 +23,3 @@ Each project created from this template should update this file to describe its
 - Add your own source code folders (e.g., `src/`, `app/`)
 - Customize documentation in `docs/`
 - Add CI/CD workflows in `.github/workflows/`
-
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-Feel free to expand this file with diagrams or more details as your template evolves!