Merge pull request #6 from jedisct1/dd

Use /dev/urandom

README.md

@@ -16,5 +16,5 @@ To build and install the latest version:
 
 To create and use a new secret key:
 
-    $ dd if=/dev/random iflag=fullblock of=glorytun.key bs=32 count=1
+    $ dd if=/dev/urandom of=glorytun.key bs=32 count=1
     # glorytun keyfile glorytun.key [...]