impr: Improve description of template file screenshot

Author: canaria-computer

internal/report/report.tmpl

@@ -53,10 +53,14 @@ Could you please review this case and take appropriate action?
 All evidence files are included in this report package.
 
 
-{{if .Notes}}
+{{if or .Notes (ne .UACount 1)}}
 ## Notes
 
-{{.Notes}}
+{{if ne .UACount 1}}Testing was performed using multiple User-Agents.
+A representative screenshot is attached.
+Additional screenshots and evidence are available upon request.
+
+{{end}}{{.Notes}}
 {{end}}
 {{if .AbuseContactsList}}## Abuse Contacts