cleanup, docs

site/doc/pages/ob_start.txt

@@ -12,7 +12,5 @@ Starts a new output buffer.
 
 All subsequent output is directed into that buffer until it is closed or collected. Every call to `ob_start()` pushes another buffer onto the output buffer stack. `ob_close()` and `ob_get_close()` destroy buffers and remove them from the stack.
 
-Related:
-
-- PHP: `ob_start()`, `ob_get_contents()`, `ob_get_clean()`, and related output-buffering APIs
-- JavaScript / Node.js: string accumulation, buffer capture, or render-to-string patterns in server code
+:example
+print("ob_start example\n");