Add ScheduledJobs to menu and remove future work section from jobs

_data/guides.yml

@@ -85,6 +85,8 @@ toc:
     path: /docs/user-guide/jobs/work-queue-1/
   - title: Fine Parallel Processing using a Work Queue
     path: /docs/user-guide/jobs/work-queue-2/
+  - title: Scheduled Jobs
+    path: /docs/user-guide/scheduled-jobs/
 
 - title: Service Discovery and Load Balancing
   section:

docs/user-guide/scheduled-jobs.md

@@ -19,6 +19,9 @@ A _Scheduled Job_ manages time based [Jobs](/docs/user-guide/jobs/), namely:
 One ScheduledJob object is like one line of a _crontab_ (cron table) file. It runs a job periodically
 on a given schedule, written in [Cron](https://en.wikipedia.org/wiki/Cron) format.
 
+NOTE: The question mark (`?`) in the schedule has the same meaning as an asterisk `*`,
+that is, it stands for any of available value for a given field.
+
 A typical use case is:
 
 * Schedule a job execution at a given point in time.
@@ -48,7 +51,7 @@ scheduledjob "hello" created
 Alternatively, use `kubectl run` to create a scheduled job without writing full config:
 
 ```shell
-$ kubectl run hello --schedule="0/1 * * * ?" --restart=OnFailure --image=busybox -- /bin/sh -c "date; echo Hello from the Kubernetes cluster"
+$ kubectl run hello --schedule="*/1 * * * *" --restart=OnFailure --image=busybox -- /bin/sh -c "date; echo Hello from the Kubernetes cluster"
 scheduledjob "hello" created
 ```
 
@@ -57,7 +60,7 @@ After creating the scheduled job, get its status using this command:
 ```shell
 $ kubectl get scheduledjob hello
 NAME      SCHEDULE      SUSPEND   ACTIVE    LAST-SCHEDULE
-hello     0/1 * * * ?   False     0         <none>
+hello     */1 * * * *   False     0         <none>
 ```
 
 As you can see above, there's no active job yet, and no job has been scheduled, either.
@@ -75,7 +78,7 @@ Now you've seen one running job scheduled by "hello". We can stop watching it an
 ```shell
 $ kubectl get scheduledjob hello
 NAME      SCHEDULE      SUSPEND   ACTIVE    LAST-SCHEDULE
-hello     0/1 * * * ?   False     0         Mon, 29 Aug 2016 14:34:00 -0700
+hello     */1 * * * *   False     0         Mon, 29 Aug 2016 14:34:00 -0700
 ```
 
 You should see that "hello" successfully scheduled a job at the time specified in `LAST-SCHEDULE`. There are

docs/user-guide/sj.yaml

@@ -3,7 +3,7 @@ kind: ScheduledJob
 metadata:
   name: hello
 spec:
-  schedule: 0/1 * * * ?
+  schedule: "*/1 * * * *"
   jobTemplate:
     spec:
       template: