docs: Documentation update, initial preparation for version 2.1 release

Change-Id: I3694a8791b9540fc1b926a83ff55421b47e0f1e2
diff --git a/docs/source/guide-to-simulate-real-apps.rst b/docs/source/guide-to-simulate-real-apps.rst
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+Simulating real applications
+============================
+
+TODO