Renames of Trait to Config in README.md, weight templates and few minor ones (#7636)

* manual rename

* renamse in README.md

* fix template

substrate/frame/session/README.md

@@ -3,7 +3,7 @@
 The Session module allows validators to manage their session keys, provides a function for changing
 the session length, and handles session rotation.
 
-- [`session::Trait`](https://docs.rs/pallet-session/latest/pallet_session/trait.Trait.html)
+- [`session::Config`](https://docs.rs/pallet-session/latest/pallet_session/trait.Config.html)
 - [`Call`](https://docs.rs/pallet-session/latest/pallet_session/enum.Call.html)
 - [`Module`](https://docs.rs/pallet-session/latest/pallet_session/struct.Module.html)
 
@@ -71,7 +71,7 @@ The [Staking pallet](https://docs.rs/pallet-staking/latest/pallet_staking/) uses
 ```rust
 use pallet_session as session;
 
-fn validators<T: pallet_session::Trait>() -> Vec<<T as pallet_session::Trait>::ValidatorId> {
+fn validators<T: pallet_session::Config>() -> Vec<<T as pallet_session::Config>::ValidatorId> {
 	<pallet_session::Module<T>>::validators()
 }
 ```

substrate/frame/session/src/historical/offchain.rs

@@ -189,12 +189,12 @@ mod tests {
 	#[test]
 	fn encode_decode_roundtrip() {
 		use codec::{Decode, Encode};
-		use super::super::super::Config as SessionTrait;
-		use super::super::Config as HistoricalTrait;
+		use super::super::super::Config as SessionConfig;
+		use super::super::Config as HistoricalConfig;
 
 		let sample = (
-				22u32 as <Test as SessionTrait>::ValidatorId,
-				7_777_777 as <Test as HistoricalTrait>::FullIdentification);
+				22u32 as <Test as SessionConfig>::ValidatorId,
+				7_777_777 as <Test as HistoricalConfig>::FullIdentification);
 
 		let encoded = sample.encode();
 		let decoded = Decode::decode(&mut encoded.as_slice()).expect("Must decode");

substrate/frame/session/src/historical/onchain.rs

@@ -20,9 +20,9 @@
 use codec::Encode;
 use sp_runtime::traits::Convert;
 
-use super::super::Config as SessionTrait;
+use super::super::Config as SessionConfig;
 use super::super::{Module as SessionModule, SessionIndex};
-use super::Config as HistoricalTrait;
+use super::Config as HistoricalConfig;
 
 use super::shared;
 use sp_std::prelude::*;
@@ -35,14 +35,14 @@ use sp_std::prelude::*;
 /// `on_initialize(..)` or `on_finalization(..)`.
 /// **Must** be called during the session, which validator-set is to be stored for further
 /// off-chain processing. Otherwise the `FullIdentification` might not be available.
-pub fn store_session_validator_set_to_offchain<T: HistoricalTrait + SessionTrait>(
+pub fn store_session_validator_set_to_offchain<T: HistoricalConfig + SessionConfig>(
 	session_index: SessionIndex,
 ) {
 	let encoded_validator_list = <SessionModule<T>>::validators()
 		.into_iter()
-		.filter_map(|validator_id: <T as SessionTrait>::ValidatorId| {
+		.filter_map(|validator_id: <T as SessionConfig>::ValidatorId| {
 			let full_identification =
-				<<T as HistoricalTrait>::FullIdentificationOf>::convert(validator_id.clone());
+				<<T as HistoricalConfig>::FullIdentificationOf>::convert(validator_id.clone());
 			full_identification.map(|full_identification| (validator_id, full_identification))
 		})
 		.collect::<Vec<_>>();
@@ -57,6 +57,6 @@ pub fn store_session_validator_set_to_offchain<T: HistoricalTrait + SessionTrait
 ///
 /// See [`fn store_session_validator_set_...(..)`](Self::store_session_validator_set_to_offchain)
 /// for further information and restrictions.
-pub fn store_current_session_validator_set_to_offchain<T: HistoricalTrait + SessionTrait>() {
+pub fn store_current_session_validator_set_to_offchain<T: HistoricalConfig + SessionConfig>() {
 	store_session_validator_set_to_offchain::<T>(<SessionModule<T>>::current_index());
 }