diff --git a/readme.md b/readme.md
index e236535..da6aac4 100644
--- a/readme.md
+++ b/readme.md
@@ -12,7 +12,11 @@ See
 
  * build sqlite db of all acquisitions with subset of parameters
  * use db summary to pull out "ideal template"
- * check new sessions' acquisitions against template to alert
+ * check new sessions' acquisitions against template to alert via cron
+   ```
+#m  h  dom mon dow   command
+30  0    *   *   *   /home/npac/src/mrrc-hdr-qa/02_update_db.sh
+```
 
 ## Notes
  * "Sequence Name(0018,0024)" called "SequenceType" in [`taglist.txt`](./taglist.txt) is different per diffusion dcm (like  `ep_b5#1`..`ep_b1540#27`)