Add Gitea badge and app description/features to README

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015g6ECVSKcBG8CJPrqC3G5o

README.md

@@ -4,6 +4,24 @@
 
 <h1 align="center">Sparkledns</h1>
 
+<p align="center">
+  <a href="https://github.com/kalarina-bit/Sparkledns/releases"><img src="assets/get-it-on-gitea.png" height="60" alt="Get it on Gitea"></a>
+</p>
+
+**Lightweight DNS-over-HTTPS client for Android** (Kotlin, Jetpack Compose).
+
+The app starts a local VPN that captures only DNS traffic and forwards every query to the selected DoH server (RFC 8484) — everything else goes through your normal connection.
+
+## Features
+
+- 🔌 **One-tap connect/disconnect**, with a Quick Settings tile
+- 🔄 **Switch servers on the fly** — the tunnel restarts automatically
+- 🚀 **Built-in server test** showing protocol and latency
+- 📊 **Live query monitor** with stats, filters and one-tap blocking
+- 📱 **Per-app DNS** — chosen apps bypass the tunnel
+- 🚫 **Custom blocklists** — your own domains plus hosts/domain/AdBlock lists by URL (HaGeZi Pro++ and TIF presets)
+- 🔓 **No analytics, no Google Play Services**
+
 ## Download
 
 `v1.0.5` is the current, latest build.