update to /PROCESS to inform of the .tgz for the distribution.

Reference: /n/patches.lsub.org/patch/dist
Date: Fri Apr 13 17:19:58 CES 2012
Signed-off-by: nemo@lsub.org

--- /PROCESS	Fri Apr 13 17:19:42 2012
+++ /PROCESS	Fri Apr 13 17:19:42 2012
@@ -10,9 +10,16 @@
 correspondance, including codereviews, goes here).
 
 2.  Download the nix distribution
+(for example:
+	9fs sources.lsub.org
+	cp /n/sources.lsub.org/nix.tgz .
+	...unpack it...
+)
 
 3.  Run it.
-
+(for example, after tar zx <nix.tgz, 
+	9vx.OSX -r nix -u glenda
+)
 
 4.  Submit patches using the following process