cleanup, docs

site/doc/pages/encode_query.txt

@@ -11,7 +11,8 @@ return value : a string with the encoded parameters
 :content
 Encodes a `StringMap` of URL parameters into a single query-string `String`.
 
-## Related Concepts
 
-- PHP: `http_build_query()`
-- JavaScript / Node.js: `URLSearchParams` and `toString()`
+:example
+StringMap q;
+q["name"] = "Ada Lovelace";
+print(encode_query(q), "\n");