docs: add version notice warning about pre-v1 releases

This commit adds a prominent warning in the README to inform users not to use tags or releases before v1.0.0, as they are not considered stable and may contain breaking changes.

Fixes #2823

Co-authored-by: Marko <tac0turtle@users.noreply.github.com>

Author: github-actions[bot]

README.md

@@ -8,6 +8,8 @@ Ev-node is the basis of the Evolve Stack. For more in-depth information about Ev
 [![GoDoc](https://godoc.org/github.com/evstack/ev-node?status.svg)](https://godoc.org/github.com/evstack/ev-node)
 <!-- markdownlint-enable MD013 -->
 
+> **⚠️ Version Notice**: Do not use tags or releases before v1.0.0. Pre-v1 releases are not considered stable and may contain breaking changes.
+
 ## Using Evolve
 
 Evolve supports multiple sync modes: