cleanup, docs

site/doc/pages/json_encode.txt

@@ -8,6 +8,7 @@ t : DValue object to be serialized
 return value : string containing the JSON result
 
 :see
+>string
 >types
 json_decode
 0_DValue
@@ -21,7 +22,8 @@ When passed a `String`, `json_encode()` returns a quoted and escaped JSON string
 
 When passed a `DValue`, scalar values are serialized directly and nested map values are emitted as JSON objects.
 
-Related:
 
-- PHP: `json_encode()`
-- JavaScript / Node.js: `JSON.stringify()`
+:example
+DValue value;
+value["name"] = "Ada";
+print(json_encode(value), "\n");