Add instruction to do a recursive clone before attempting a build

OpenTimelineIO · Sep 25, 2024 · 346fe83 · 346fe83
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commit 346fe83
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diff --git a/README.md b/README.md
@@ -26,6 +26,9 @@ Linux (Ubuntu, or similar):
 - A recent version of CMake
   - You can get this via `sudo snap install cmake` or by downloading from https://cmake.org/download/
 
+__Note__: Before building, please ensure that you clone this project with the `-recursive` flag. 
+This will also clone and initialize all of the submodules that this project depends on.
+
 ## Building (macOS, Windows, Linux)
 
 	% mkdir build