docs: add link to current tagged version

Author: yaadata

README.md

@@ -12,8 +12,9 @@ Neovim plugin for running the Codex CLI in an embedded terminal.
 
 > [!CAUTION]
 > You are reading the `master` branch README. Install and configuration details
-> may differ from tagged releases. The current latest release tag is `v0.2.1`.
-> For version-accurate instructions, read the README for your target tag from
+> may differ from tagged releases. The current latest release tag is
+> [`v0.2.1`](https://codeberg.org/yaadata/codex.nvim/src/tag/v0.2.1). For
+> version-accurate instructions, read the README for your target tag from
 > [Codeberg releases](https://codeberg.org/yaadata/codex.nvim/releases).
 
 ## Install