Update app.py

app.py

@@ -2738,11 +2738,17 @@ class DocumentCheckResultsFormatter:
                     output.extend(self._format_parentheses_issues(result))
                 elif check_name == 'paragraph_length_check':
                     output.extend(self._format_paragraph_length_issues(result))
+                elif check_name == 'sentence_length_check':
+                    formatted_issues = [self._format_standard_issue(issue) for issue in result.issues[:15]]
+                    output.extend(formatted_issues)
+                    
+                    if len(result.issues) > 15:
+                        output.append(f"\n    ... and {len(result.issues) - 15} more similar issues.")
                 else:
                     formatted_issues = [self._format_standard_issue(issue) for issue in result.issues[:15]]
                     output.extend(formatted_issues)
                     
-                    if len(result.issues) > 10:
+                    if len(result.issues) > 15:
                         output.append(f"\n    ... and {len(result.issues) - 15} more similar issues.")
         
         return '\n'.join(output)