change readme to point to scripts/flashing/flash.sh instead of scripts/flash.sh

SVN-Revision: 13783

README

@@ -10,8 +10,8 @@ Simply running 'make' will build your firmware.
 It will download all sources, build the cross-compile toolchain, 
 the kernel and all choosen applications.
 
-You can use scripts/flash.sh for remotely updating your embedded system
-via tftp.
+You can use scripts/flashing/flash.sh for remotely updating your embedded
+system via tftp.
 
 The OpenWrt system is documented in docs/. You will need a LaTeX distribution
 and the tex4ht package to build the documentation. Type make -C docs/ to build it.