chore: release termviz 0.2.3

Bump the crate and lockfile versions to 0.2.3 and update the tagged install example.

Move the snapped plot hover probe notes into the 0.2.3 changelog entry so the tag workflow can publish accurate GitHub Release notes.

Author: siriusctrl

CHANGELOG.md

@@ -8,6 +8,8 @@ matching `## [X.Y.Z]` section before the release tag is pushed.
 
 ## [Unreleased]
 
+## [0.2.3] - 2026-06-18
+
 ### Added
 
 - Add read-only plot hover readouts that snap to the nearest visible point,

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "termviz"
-version = "0.2.2"
+version = "0.2.3"
 edition = "2024"
 rust-version = "1.85"
 description = "Terminal-first viewer for images and plots"

Cargo.toml

@@ -17,7 +17,7 @@ cargo install --git https://github.com/siriusctrl/termviz
 To install a tagged version:
 
 ```sh
-cargo install --git https://github.com/siriusctrl/termviz --tag v0.2.2
+cargo install --git https://github.com/siriusctrl/termviz --tag v0.2.3
 ```
 
 ```sh