Use `default_testonly = True` in the style example

This keeps consistency with the later section that recommends to use boolean values for boolean-type attributes.

PiperOrigin-RevId: 311100657
diff --git a/site/docs/skylark/build-style.md b/site/docs/skylark/build-style.md
index c8298fa..451e160 100644
--- a/site/docs/skylark/build-style.md
+++ b/site/docs/skylark/build-style.md
@@ -20,8 +20,8 @@
 ## Formatting example
 
 ```python
-# Test code implmenting the Foo controller.
-package(default_testonly = 1)
+# Test code implementing the Foo controller.
+package(default_testonly = True)
 
 py_test(
     name = "foo_test",