cleanup, docs

site/doc/pages/html_escape.txt

@@ -19,7 +19,5 @@ Returns a version of the input string where special HTML characters are replaced
 - `>` becomes `>`
 - `"` becomes `"`
 
-## Related Concepts
-
-- PHP: `htmlspecialchars()` or `htmlentities()`
-- JavaScript / Node.js: safe text insertion via `textContent` or server-side HTML escaping libraries
+:example
+print("html_escape example\n");