schedule_para_{init,cleanup} docs

Now they link to their original declarations in the pallet for more
details.

runtime/parachains/src/lib.rs

@@ -52,6 +52,8 @@ pub use paras::ParaLifecycle;
 use primitives::v1::Id as ParaId;
 
 /// Schedule a para to be initialized at the start of the next session with the given genesis data.
+///
+/// See [`paras::Pallet::schedule_para_initialize`] for more details.
 pub fn schedule_para_initialize<T: paras::Config>(
 	id: ParaId,
 	genesis: paras::ParaGenesisArgs,
@@ -60,6 +62,8 @@ pub fn schedule_para_initialize<T: paras::Config>(
 }
 
 /// Schedule a para to be cleaned up at the start of the next session.
+///
+/// See [`paras::Pallet::schedule_para_cleanup`] for more details.
 pub fn schedule_para_cleanup<T: paras::Config>(id: primitives::v1::Id) -> Result<(), ()> {
 	<paras::Pallet<T>>::schedule_para_cleanup(id).map_err(|_| ())
 }