Update README

README.md

@@ -15,6 +15,7 @@ Disable a source:
 log.visible = false;
 
 log.debug("I can't be seen!");
+
 // no output
 ```
 
@@ -30,3 +31,18 @@ log.n("Something happened");
 // 2024-11-14T01:21:40.350Z Main [NETWORK] Network is networking
 // 2024-11-14T01:21:40.350Z Main2 [NETWORK] Something happened
 ```
+
+Disable a type of message globally:
+```ts
+import Logging, { MessageTypeVisibility } from "./mod.ts";
+// .. logging source "Main" is in the scope
+
+MessageTypeVisibility.Error = false;
+
+// somewhere else, could be a different script
+log.i("I am visible");
+log.error("I am not visible");
+
+// output:
+// 2024-11-14T01:21:40.350Z Main [INFO] I am visible
+```