updates ex example

Author: Ben Skelker

docs/siem/detections/detections-ui-exceptions.asciidoc

@@ -178,7 +178,7 @@ excluding the correct fields is with nested conditions. One example is the
   "ancestry": [],
   "code_signature": {
     "trusted": true,
-    "subject_name": "Microsoft Windows",
+    "subject_name": "LFC",
     "exists": true,
     "status": "trusted"
   },
@@ -222,7 +222,7 @@ correctly:
 [discrete]
 ==== Nested condition example
 
-Creates an exception that excludes all trusted Microsoft Windows processes: 
+Creates an exception that excludes all LFC-signed trusted processes: 
 
 [role="screenshot"]
 image::images/nested-exp.png[]