docs: fix schedule syntax documentation drift (#480)

Author: github-actions[bot]

README.md

@@ -285,11 +285,21 @@ on:
 on:
   schedule: weekly on monday around 9:00   # Monday morning
 
+# Multi-day / Special periods
+on:
+  schedule: every 2 days                   # Every 2 days at scattered time
+on:
+  schedule: every 2 weeks                  # Every 14 days at scattered time
+on:
+  schedule: bi-weekly                      # Every 14 days at scattered time
+on:
+  schedule: tri-weekly                     # Every 21 days at scattered time
+
 # Hourly / Minute intervals
 on:
   schedule: hourly                         # Every hour, scattered minute
 on:
-  schedule: every 2h                       # Every 2 hours
+  schedule: every 2h                       # Every 2 hours (valid: 1, 2, 3, 4, 6, 8, 12)
 on:
   schedule: every 15 minutes               # Fixed, not scattered
 

prompts/create-ado-agentic-workflow.md

@@ -111,11 +111,13 @@ schedule:
 | `daily between 9:00 and 17:00` | Business hours |
 | `weekly on monday` | Every Monday, scattered time |
 | `weekly on friday around 17:00` | Friday ~5 PM |
-| `hourly` | Every hour, scattered minute |
-| `every 2h` / `every 6h` | Every N hours (must divide 24) |
-| `every 15 minutes` | Minimum 5 min interval |
+| `every 2 days` | Every N days, time scattered |
+| `every 2 weeks` | Every N weeks (converted to N×7 days) |
 | `bi-weekly` | Every 14 days |
 | `tri-weekly` | Every 21 days |
+| `hourly` | Every hour, scattered minute |
+| `every 2h` / `every 6h` | Every N hours (valid: 1, 2, 3, 4, 6, 8, 12) |
+| `every 15 minutes` | Minimum 5 min interval |
 
 **Timezone**: Append `utc+N` or `utc-N` to any time: `daily around 9:00 utc-5`