Update README.md
diff --git a/README.md b/README.md
index ca39e26..bc7f0bf 100644
--- a/README.md
+++ b/README.md
@@ -300,7 +300,8 @@
         -v, --verify
             Verify the data was written correctly
         -x, --execute
-            Perform a flash update boot to execute the downloaded file as a program after the load
+            Perform a bootrom reboot to execute the downloaded file as a program after the load - either a flash update boot for binaries in
+            flash, or a RAM image boot for other binaries 
     File to load from
         <filename>
             The file name