Prepare release v0.1.1 (#16)

Add CHANGELOG.md for better tracking history of changes.

CHANGELOG.md

@@ -0,0 +1,25 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v0.1.1](https://github.com/wowica/xander/releases/tag/v0.1.1) (2025-02-19)
+
+### Fixed
+
+- Issue where the ledger state tracked by the Query OTP process wouldn't be
+updated after establishing a connection. The result was that queries would
+always return the same value.
+
+## [v0.1.0](https://github.com/wowica/xander/releases/tag/v0.1.0) (2024-02-17)
+
+### Added
+
+- Establish connection to Cardano node via Unix socket file or Demeter.run URL
+- Support for Ledger State Queries:
+  * `:get_current_era`
+  * `:get_current_block_height`
+  * `:get_epoch_number`
+  * `:get_current_tip`

mix.exs

@@ -3,7 +3,7 @@ defmodule Xander.MixProject do
 
   @description "An Elixir library for communicating with a Cardano node"
   @source_url "https://github.com/wowica/xander"
-  @version "0.1.0"
+  @version "0.1.1"
 
   def project do
     [