Add Urlscan to observable support matrix

salt/sensoroni/files/analyzers/README.md

@@ -15,6 +15,7 @@ The built-in analyzers support the following observable types:
 | Pulsedive               |✓ |✓|✓|✗|✗|✗|✓|✓|✓|
 | Spamhaus                |✗ |✗|✓|✗|✗|✗|✗|✗|✗|
 | Urlhaus                 |✗ |✗|✗|✗|✗|✗|✗|✓|✗|
+| Urlscan                 |✗ |✗|✗|✗|✗|✗|✗|✓|✗|
 | Virustotal              |✓ |✓|✓|✗|✗|✗|✗|✓|✗|
 
 ## Developer Guide