Highly recommend make clean vm to devs

diff --git a/README.md b/README.md
index 121193a0e00f6d0c24fe4eaef728b50c11237f07..e200c498fcba665efc70c6170b9db98a65fa6053 100644 (file)
--- a/README.md
+++ b/README.md
@@ -39,3 +39,8 @@ of your choice (but only if you've built it). It is exactly 32 MiB in size.
 to the wrong device.**
 
 You can then boot from the device. It should once again print "Hello Stage2!".
+
+# Developing
+It is highly recommended to run `make clean vm`.
+It takes longer to complete but is sometimes necessary
+to fully apply your changes.