Update desc for Timeout

gunicorn/config.py

@@ -774,10 +774,14 @@ class Timeout(Setting):
     desc = """\
         Workers silent for more than this many seconds are killed and restarted.
 
-        Generally set to thirty seconds. Only set this noticeably higher if
-        you're sure of the repercussions for sync workers. For the non sync
-        workers it just means that the worker process is still communicating and
-        is not tied to the length of time required to handle a single request.
+        Value is a positive number or 0. Setting it to 0 has the effect of
+        infinite timeouts by disabling timeouts for all workers entirely.
+
+        Generally, the default of thirty seconds should suffice. Only set this
+        noticeably higher if you're sure of the repercussions for sync workers.
+        For the non sync workers it just means that the worker process is still
+        communicating and is not tied to the length of time required to handle a
+        single request.
         """