cleanup, docs

site/doc/pages/split_kv.txt

@@ -20,10 +20,9 @@ Each non-empty line is split on the first `separator`. Lines without the separat
 
 Example:
 
-```uce
-StringMap cfg = split_kv("host = localhost\nport = 8080");
-// cfg["host"] == "localhost"
-// cfg["port"] == "8080"
-```
 
 This is useful for small config files, metadata blocks, and tests that need predictable key/value parsing.
+
+:example
+StringMap values = split_kv("name=Ada\nrole=admin");
+print(values["name"], "\n");