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-Windows binaries for TinderBox, a tool for creating Cinder projects (http://libcinder.org)
diff --git a/README.md b/README.md
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+Windows binaries for TinderBox, a tool for creating Cinder projects (http://libcinder.org)
+
+TinderBox is included by Cinder from git as a submodule. In the initial clone of Cinder, be sure to use `--recursive`.
+
+    git clone --recursive https://github.com/cinder/Cinder.git