Make naming scheme more meaningful

Change-Id: Ifcaf00c760ff452b0e85a88b54e91ca0f2f4644a
diff --git a/verifier24/README b/verifier24/README
new file mode 100644
index 0000000..44d9422
--- /dev/null
+++ b/verifier24/README
@@ -0,0 +1,2 @@
+This is older code from Android 5.1 Marshmallow (SDK ver 24) and older
+that still used mincrypt instead of libcrypto.