1 files changed, 9 insertions, 0 deletions
diff --git a/README b/README
index 1a601c8..4374e16 100644
--- a/README
+++ b/README
@@ -48,3 +48,12 @@ Flash firmware
 
 Press down the 'prog' key while the board is rebooting.  You can release
 it once it glows red.
+
+
+Apply the color map
+===================
+
+    ~$ make apply-colormap
+
+This requires a firmware supporting the Serial protocol.  (Add
+ENABLE_SERIAL=1 to the build environment.)