Update docs
First pass at docs to bring them up to date with The Great GN Refactor.
More to follow.
Change-Id: I02dc977fcdc7bf3efa8fc9080282dee9b1455cdd
diff --git a/pw_sys_io_stdio/docs.rst b/pw_sys_io_stdio/docs.rst
index d4c1954..31a9357 100644
--- a/pw_sys_io_stdio/docs.rst
+++ b/pw_sys_io_stdio/docs.rst
@@ -26,8 +26,7 @@
This module requires relatively minimal setup:
1. Write code against the ``pw_sys_io`` facade.
- 2. Specify the ``dir_pw_sys_io_backend`` GN global variable to point to this
- backend.
+ 2. Direct the ``pw_sys_io_BACKEND`` GN build arg to point to this backend.
Module usage
============