Create @reboot .... Cron jobs (#213)

* Update file.sls

add replace

* Update file.sls

update replace

* Update job.sls

Added the opportunity to set a job with a special keyword like '@reboot' or '@hourly'. Quotes must be used, otherwise PyYAML will strip the '@' sign.
https://docs.saltstack.com/en/master/ref/states/all/salt.states.cron.html

* Update README.rst

Added the opportunity to set a job with a special keyword like '@reboot' or '@hourly'. Quotes must be used, otherwise PyYAML will strip the '@' sign.

* Update README.rst

README.rst

             hour: 2
             minute: 0
 
+Added the opportunity to set a job with a special keyword like '@reboot' or '@hourly'. Quotes must be used, otherwise PyYAML will strip the '@' sign.
+
+.. code-block:: yaml
+
+    linux:
+      system:
+        ...
+        job:
+          cmd1:
+            command: '/cmd/to/run'
+            identifier: cmd1
+            enabled: true
+            user: 'root'
+            special: '@reboot'
+
+
 Managing 'at' tasks
 -------------------
 

linux/system/job.sls

     - identifier: {{ job.get('identifier', job.get('name', name)) }}
       {%- endif %}
     - user: {{ job_user }}
-      {%- if job.minute is defined %}
+      {%- if job.special is defined %}
+    - special: '{{ job.special }}'
+      {%- else %}
+        {%- if job.minute is defined %}
     - minute: '{{ job.minute }}'
-      {%- endif %}
-      {%- if job.hour is defined %}
+        {%- endif %}
+        {%- if job.hour is defined %}
     - hour: '{{ job.hour }}'
-      {%- endif %}
-      {%- if job.daymonth is defined %}
+        {%- endif %}
+        {%- if job.daymonth is defined %}
     - daymonth: '{{ job.daymonth }}'
-      {%- endif %}
-      {%- if job.month is defined %}
+        {%- endif %}
+        {%- if job.month is defined %}
     - month: '{{ job.month }}'
       {%- endif %}
-      {%- if job.dayweek is defined %}
+        {%- if job.dayweek is defined %}
     - dayweek: '{{ job.dayweek }}'
+        {%- endif %}
       {%- endif %}
     - require:
       - sls: linux.system.cron