cleanup, docs

site/doc/pages/file_put_contents.txt

@@ -13,7 +13,6 @@ return value : true if write was successful
 Writes `content` into the file identified by `file_name`, overwriting any pre-existing content.
 
 The write transparently takes an exclusive file lock for the duration of the truncate-and-write operation. Concurrent writers are serialized, and `file_get_contents()` waits for in-progress writes to finish; callers do not manage locks manually.
-## Related Concepts
 
-- PHP: `file_put_contents()`
-- JavaScript / Node.js: Node `fs.writeFileSync()` or `fs.promises.writeFile()`
+:example
+print("file_put_contents example\n");