CI: Check that rustdocs can be generated (#972)

test/runtime/src/lib.rs

@@ -68,7 +68,7 @@ impl_opaque_keys! {
 	pub struct SessionKeys {}
 }
 
-/// Some key that we set in genesis and only read in [`TestRuntimeUpgrade`] to ensure that
+/// Some key that we set in genesis and only read in [`TestOnRuntimeUpgrade`] to ensure that
 /// [`OnRuntimeUpgrade`] works as expected.
 pub const TEST_RUNTIME_UPGRADE_KEY: &[u8] = b"+test_runtime_upgrade_key+";
 

test/service/src/chain_spec.rs

@@ -54,7 +54,7 @@ pub fn get_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Pu
 		.public()
 }
 
-/// The extensions for the [`ChainSpec`].
+/// The extensions for the [`ChainSpec`](crate::ChainSpec).
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize, ChainSpecGroup, ChainSpecExtension)]
 #[serde(deny_unknown_fields)]
 pub struct Extensions {