docs: add eta banner to the readme (#57)

* docs: add eta banner to the readme

* docs: line breaks

* docs: upd banner

Author: maxprilutskiy

readme.md

@@ -1,3 +1,7 @@
+> [!NOTE]
+> **We're LIVE!** <br /><br />
+> Today, Replexica Compiler supports **Next.js App Router**, and Replexica API supports **English 🇺🇸 and Spanish 🇪🇸**. We're releasing **Next.js Pages Router + French 🇫🇷 language support next**! <br /> <br /> For real-time updates on our progress, please [join our Discord](https://discord.gg/GeK6AuSqzw).
+
 <p align="center">
 <img src="./content/banner.light.png#gh-light-mode-only">
 <img src="./content/banner.dark.png#gh-dark-mode-only">