chore: add changes for bindings and proto packages (#23)

.editorconfig

@@ -13,3 +13,6 @@ insert_final_newline = true
 
 [*.rs]
 indent_size = 4
+
+[CHANGELOG.md]
+max_line_length = 80

CHANGELOG.md

@@ -1,16 +1,39 @@
 # Changelog
 
-## Unreleased
+All notable changes to this project will be documented in this file.
 
-### Features
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
 
-* Add flat-fee bindings (#9)
-* Update bindings to allow a contract to update another contract's metadata (#11)
+## archway-proto v0.1.0 (2023-10-15)
 
-## v0.1.0 (2023-01-24)
+### Added
 
-### Features
+- **proto:** generated ProtoBuf structs from the protocol (#18)
+- **proto:** tonic gRPC client and server (#18)
 
-* `ArchwayMsg` and `ArchwayQuery` (#4)
-* Sample increment contract (#5)
-* Custom gov vote query (#6)
+## archway-bindings v0.2.0 (2023-10-15)
+
+### Added
+
+- **bindings:** message and query for contract premiums (flat fees) (#9)
+- **bindings:** helper to withdraw max rewards (#22)
+- **contracts:** rewards staking example (#17)
+- **contracts:** sample usage for flat fee (#9)
+
+### Changed
+
+- **bindings:** allow a contract to update another contract's metadata (#11)
+- **bindings:** allow importing cosmwasm-std staking feature (#16)
+
+### Fixed
+
+- **bindings:** `contract_address` is mandatory on `SetFlatFee` (#21)
+
+## archway-bindings v0.1.0 (2023-01-24)
+
+### Added
+
+- **bindings:** `ArchwayMsg` and `ArchwayQuery` (#4)
+- **bindings:** custom gov vote query (#6)
+- **contracts:** sample increment contract (#5)