add explanation as to why some operations are unsupported

Author: Timongcraft

docs/velocity/dev/getting-started/pitfalls.mdx

@@ -33,6 +33,9 @@ public void onProxyInitialization(ProxyInitializeEvent event) {
 
 ## Audience operations are not fully supported
 
+Velocity currently does not support all Audience operations of the Adventure API, so these operations should be handled on the backend.
+Furthermore, playing sound was previously considered infeasible, as for versions below 1.19.3, a registry of hardcoded sound IDs is required.
+
 | Operation                  | Supported |
 | -------------------------- | ----------|
 | Chat messages              | Yes       |