Made it a bit more obvious that 45 are 45 seconds

docsite/rst/playbooks_async.rst

@@ -22,7 +22,7 @@ poll value is 10 seconds if you do not specify a value for `poll`::
 
       tasks:
 
-      - name: simulate long running op (15 sec), wait for up to 45, poll every 5
+      - name: simulate long running op (15 sec), wait for up to 45 sec, poll every 5 sec
         command: /bin/sleep 15
         async: 45
         poll: 5
@@ -42,7 +42,7 @@ Alternatively, if you do not need to wait on the task to complete, you may
 
       tasks:
 
-      - name: simulate long running op, allow to run for 45, fire and forget
+      - name: simulate long running op, allow to run for 45 sec, fire and forget
         command: /bin/sleep 15
         async: 45
         poll: 0