diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # play.webxr.dev
 
+Each subdirectory is a standalone project.
+
 ## Keeping the Template Updated
 
 Periodically we should make sure that the template is up to date. To do this,