[PATCH] Update build instructions.

[greearb at candelatech.com]

From: Ben Greear <greearb at candelatech.com>

I found no ./build script, but 'make firmware' appears to
do the trick.

Signed-off-by: Ben Greear <greearb at candelatech.com>
---
 README | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README b/README
index 18af41f..15c003c 100644
--- a/README
+++ b/README
@@ -61,7 +61,7 @@ You're in for a treat.
 
   * Linux:
 
-  $ ./build
+  $ make firmware
 
   * FreeBSD:
 
@@ -70,7 +70,7 @@ You're in for a treat.
   $ ./build
 
 You will end up with two .fw files - one for the AR7010 and one for
-the AR9271.
+the AR9271 in the target_firmware directory.
 
 
 Then what?
-- 
1.7.11.7