using /tmp/shell.sock path for consistency with sockproc examples

Author: juce

README.md

@@ -22,7 +22,7 @@ https://github.com/juce/sockproc
 
 Make sure to have sockproc running and listenning on a UNIX domain socket:
 
-    $ ./sockproc /tmp/hello.sock
+    $ ./sockproc /tmp/shell.sock
 
 In your OpenResty config:
 

lib/resty/shell.lua

@@ -11,7 +11,7 @@ local shell = {
     _VERSION = '0.01'
 }
 
-local sockproc_socket = "unix:/tmp/hello.sock"
+local sockproc_socket = "unix:/tmp/shell.sock"
 
 
 function shell.execute(cmd, args)