Add some external contributor shoutouts

CHANGELOG.md

@@ -12,7 +12,7 @@ TODO: release summary. Possibly aggregate together all changes since last proper
 
 ### Added
 - Add `Mapping::contains(key)` and `Mapping::insert_return_size(key, val)` ‒ [#1224](https://github.com/paritytech/ink/pull/1224)
-- Add [`payment-channel`](https://github.com/paritytech/ink/tree/master/examples/payment-channel) example ‒ [#1248](https://github.com/paritytech/ink/pull/1248)
+- Add [`payment-channel`](https://github.com/paritytech/ink/tree/master/examples/payment-channel) example ‒ [#1248](https://github.com/paritytech/ink/pull/1248) (thanks [@kanishkatn](https://github.com/kanishkatn)!)
 - Add `version` field to ink! metadata ‒ [#1313](https://github.com/paritytech/ink/pull/1313)
 - The `rand-extension` example has been adapted to an updated version of the `ChainExtension` API ‒ [#1356](https://github.com/paritytech/ink/pull/1356)
 - Add `ink_env::pay_with_call!` helper macro for off-chain emulation of sending payments with contract message calls ‒ [#1379](https://github.com/paritytech/ink/pull/1379)
@@ -22,10 +22,10 @@ TODO: release summary. Possibly aggregate together all changes since last proper
 - Add E2E tests for `Mapping` functions - [#1492](https://github.com/paritytech/ink/pull/1492)
 - E2E: expose call dry-run method ‒ [#1624](https://github.com/paritytech/ink/pull/1624)
 - Make cross-contract callee non-optional ‒ [#1636](https://github.com/paritytech/ink/pull/1636)
-- Support custom environment in E2E tests - [#1645](https://github.com/paritytech/ink/pull/1645) (thanks [@pmikolajczyk41](https://github.com/pmikolajczyk41))
+- Support custom environment in E2E tests - [#1645](https://github.com/paritytech/ink/pull/1645) (thanks [@pmikolajczyk41](https://github.com/pmikolajczyk41)!)
 
 ### Changed
-- Contract size optimization in case contract doesn't accept payment ‒ [#1267](https://github.com/paritytech/ink/pull/1267) (thanks [@xgreenx](https://github.com/xgreenx)).
+- Contract size optimization in case contract doesn't accept payment ‒ [#1267](https://github.com/paritytech/ink/pull/1267) (thanks [@xgreenx](https://github.com/xgreenx)!)
 - Move ink! linter into `ink` repository ‒ [#1361](https://github.com/paritytech/ink/pull/1267)
 - Introduce `ink` entrance crate ‒ [#1223](https://github.com/paritytech/ink/pull/1223)
 - Use `XXH32` instead of `sha256` for calculating storage keys ‒ [#1393](https://github.com/paritytech/ink/pull/1393)
@@ -39,11 +39,11 @@ TODO: release summary. Possibly aggregate together all changes since last proper
 - Bump Dylint dependencies ‒ [#1551](https://github.com/paritytech/ink/pull/1551)
 - Stabilize `take_storage` ‒ [#1568](https://github.com/paritytech/ink/pull/1568)
 - Chain Extension: Evaluation of method return type at compile time ‒ [#1569](https://github.com/paritytech/ink/pull/1569)
-- Make more functions be const ‒ [#1574](https://github.com/paritytech/ink/pull/1574) (thanks [@yjhmelody](https://github.com/yjhmelody))
+- Make more functions be const ‒ [#1574](https://github.com/paritytech/ink/pull/1574) (thanks [@yjhmelody](https://github.com/yjhmelody)!)
 - Unify fallible and non fallible `instantiate` methods ‒ [#1591](https://github.com/paritytech/ink/pull/1591)
 - Make `CallBuilder` and `CreateBuilder` error handling optional ‒ [#1602](https://github.com/paritytech/ink/pull/1602)
 - Rename `CallBuilder::fire()` method to `invoke()` ‒ [#1604](https://github.com/paritytech/ink/pull/1604)
-- chore: add minimum rust version to the ink crate ‒ [#1609](https://github.com/paritytech/ink/pull/1609) (thanks [@Kurtsley](https://github.com/Kurtsley))
+- chore: add minimum rust version to the ink crate ‒ [#1609](https://github.com/paritytech/ink/pull/1609) (thanks [@Kurtsley](https://github.com/Kurtsley)!)
 - Rename `_checked` codegen call methods with `try_` ‒ [#1621](https://github.com/paritytech/ink/pull/1621)
 - Bump Substrate and `subxt` dependencies ‒ [#1549](https://github.com/paritytech/ink/pull/1549)
 - E2E: spawn a separate contracts node instance per test ‒ [#1642](https://github.com/paritytech/ink/pull/1642)
@@ -52,7 +52,7 @@ TODO: release summary. Possibly aggregate together all changes since last proper
 - Trim single whitespace prefix in the metadata `docs` field ‒ [#1385](https://github.com/paritytech/ink/pull/1385)
 - Allow pay_with_call to take multiple arguments ‒ [#1401](https://github.com/paritytech/ink/pull/1401)
 - Add Determinism enum from pallet-contracts ‒ [#1547](https://github.com/paritytech/ink/pull/1547)
-- Added missed `WhereClosure` for the generics into `storage_item` ‒ [#1536](https://github.com/paritytech/ink/pull/1536) (thanks [@xgreenx](https://github.com/xgreenx))
+- Added missed `WhereClosure` for the generics into `storage_item` ‒ [#1536](https://github.com/paritytech/ink/pull/1536) (thanks [@xgreenx](https://github.com/xgreenx)!)
 
 ### Removed
 - Implement `ecdsa_to_eth_address()` and remove `eth_compatibility` crate ‒ [#1233](https://github.com/paritytech/ink/pull/1233)