Update the Alert Digest partial template to be more concise

docs/internal/reporttemplate.md

@@ -81,7 +81,10 @@ Today, Tomorrow, and Hourly call the shared `alert_digest` and
 template at render time and receive the same typed render context as the
 caller. The `alert_digest` partial renders the combined Alerts and Risk
 Products section from relevant NWS alerts and curated SPC outlook digest
-records.
+records. Rendered NWS alert bullets include alert identity and timing but omit
+instruction and description text. Rendered SPC outlook bullets start at
+Enhanced Risk; lower-risk SPC entries may still exist in module snapshots and
+data packages.
 
 ## Schema Contract