docs: add note about viewing README for release tag

Related to #368

README.md

@@ -1,6 +1,10 @@
 > [!WARNING]
 > This plugin is _beta_ quality. Expect breaking changes and many bugs
 
+> [!NOTE]
+> If you're on a release tag, ensure you're viewing the README for your version
+> https://github.com/Saghen/blink.cmp/tags
+
 # Blink Completion (blink.cmp)
 
 **blink.cmp** is a completion plugin with support for LSPs and external sources that updates on every keystroke with minimal overhead (0.5-4ms async). It use a [custom SIMD fuzzy searcher](https://github.com/saghen/frizbee) to easily handle >20k items. It provides extensibility via hooks into the trigger, sources and rendering pipeline. Plenty of work has been put into making each stage of the pipeline as intelligent as possible, such as frecency and proximity bonus on fuzzy matching, and this work is on-going.