doc: add REPOSITORY related vars & cron job

README.md

@@ -3,8 +3,39 @@ Please define the following variables
 
 GITIT_USER_EMAIL:             glenux@glenux.net
 GITIT_USER_NAME:              Glenn Y. Rolland
+GITIT_REMOTE_REPOSITORY:      git@github.com/glenux/somewhere
+GITIT_REMOTE_DOMAIN:          github.com
 
 Please mount the following volumes
 
 /var/lib/dokku/data/storage/cryptochemists-wiki-prod => /data
 
+You can also add a cron task to mirror the wiki on a regular basis
+
+    # server cron jobs
+    MAILTO="admin@server.com"
+    PATH=/usr/local/bin:/usr/bin:/bin
+    SHELL=/bin/bash
+
+    # m   h   dom mon dow   username command
+    # *   *   *   *   *     dokku    command to be executed
+    # -   -   -   -   -
+    # |   |   |   |   |
+    # |   |   |   |   +----- day of week (0 - 6) (Sunday=0)
+    # |   |   |   +------- month (1 - 12)
+    # |   |   +--------- day of month (1 - 31)
+    # |   +----------- hour (0 - 23)
+    # +----------- min (0 - 59)
+
+    ### HIGH TRAFFIC TIME IS B/W 00:00 - 04:00 AND 14:00 - 23:59
+    ### RUN YOUR TASKS FROM 04:00 - 14:00
+    ### KEEP SORTED IN TIME ORDER
+
+    ### PLACE ALL CRON TASKS BELOW
+
+    # removes unresponsive users from the subscriber list to decrease bounce rates
+    0 * * * * dokku dokku --rm run cryptochemists-wiki-prod sh -c "cd wikidata && git push --set-upstream origin master"
+
+    ### PLACE ALL CRON TASKS ABOVE, DO NOT REMOVE THE WHITESPACE AFTER THIS LINE
+
+