Mark ignore on test runner docs

agb/src/lib.rs

@@ -247,7 +247,7 @@ impl Gba {
 /// In order to use this, you need to enable the unstable `custom_test_framework` feature and copy-paste
 /// the following into the top of your application:
 ///
-/// ```
+/// ```rust,ignore
 /// #![cfg_attr(test, feature(custom_test_frameworks))]
 /// #![cfg_attr(test, reexport_test_harness_main = "test_main")]
 /// #![cfg_attr(test, test_runner(agb::test_runner::test_runner))]
@@ -256,7 +256,7 @@ impl Gba {
 /// With this support, you will be able to write tests which you can run using `mgba-test-runner`.
 /// Tests are written using `#[test_case]` rather than `#[test]`.
 ///
-/// ```
+/// ```rust,ignore
 /// #[test_case]
 /// fn test_ping_pong(_gba: &mut Gba) {
 ///     assert_eq!(1, 1);