docs: Adding danger block around status warning.

Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>
diff --git a/Makefile b/Makefile
index 7c88b73..12cbbd4 100644
--- a/Makefile
+++ b/Makefile
@@ -26,6 +26,7 @@
 			-e's@|TAG_VERSION|@$(TAG_VERSION)@g' \
 			-e's@:ref:`Versioning Information`@`Versioning Information <docs/versioning.rst>`_@g' \
 			-e's@:ref:`Known Issues`@`Versioning Information <docs/known_issues.rst>`_@g' \
+			-e's@.. warning::@*Warning*@g' \
 		> README.rst