More app-friendly event description (#6684)

* More app-friendly event description

* change origin -> owner

* checked all decl_event! and changed decriptions.

* annotated parameter names for remaining events

Author: warfollowsme

src/lib.rs

@@ -1238,28 +1238,30 @@ decl_storage! {
 decl_event!(
 	pub enum Event<T> where Balance = BalanceOf<T>, <T as frame_system::Trait>::AccountId {
 		/// The era payout has been set; the first balance is the validator-payout; the second is
-		/// the remainder from the maximum amount of reward.
+		/// the remainder from the maximum amount of reward. 
+		/// [era_index, validator_payout, remainder]
 		EraPayout(EraIndex, Balance, Balance),
-		/// The staker has been rewarded by this amount. `AccountId` is the stash account.
+		/// The staker has been rewarded by this amount. [stash, amount]
 		Reward(AccountId, Balance),
-		/// One validator (and its nominators) has been slashed by the given amount.
+		/// One validator (and its nominators) has been slashed by the given amount. 
+		/// [validator, amount]
 		Slash(AccountId, Balance),
 		/// An old slashing report from a prior era was discarded because it could
-		/// not be processed.
+		/// not be processed. [session_index]
 		OldSlashingReportDiscarded(SessionIndex),
-		/// A new set of stakers was elected with the given computation method.
+		/// A new set of stakers was elected with the given [compute].
 		StakingElection(ElectionCompute),
-		/// A new solution for the upcoming election has been stored.
+		/// A new solution for the upcoming election has been stored. [compute]
 		SolutionStored(ElectionCompute),
-		/// An account has bonded this amount.
+		/// An account has bonded this amount. [stash, amount]
 		///
 		/// NOTE: This event is only emitted when funds are bonded via a dispatchable. Notably,
 		/// it will not be emitted for staking rewards when they are added to stake.
 		Bonded(AccountId, Balance),
-		/// An account has unbonded this amount.
+		/// An account has unbonded this amount. [stash, amount]
 		Unbonded(AccountId, Balance),
 		/// An account has called `withdraw_unbonded` and removed unbonding chunks worth `Balance`
-		/// from the unlocking queue.
+		/// from the unlocking queue. [stash, amount]
 		Withdrawn(AccountId, Balance),
 	}
 );