add readme

README.md

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+# Simple TTS UI
+My tts ui program for unix
+
+I made this program as an alternative to my bash script for text chunking and sequential streaming
+
+Screenshot:
+![screenshot](./screenshot.png "Screenshot")
+
+## Installation
+
+Dependencies: hexgrad/Kokoro or lucasjinreal/Kokoros and a player aplay/paplay/play/ffplay/mpg123
+
+Build dependencies: eframe, egui, atty, tempfile
+
+Set path for TTS: (these settings can be changed after build)
+
+```rust
+impl Default for KokoroConfig {
+    fn default() -> Self {
+        let home = std::env::var("HOME").unwrap_or_else(|_| ".".to_string());
+        Self {
+            exec_path: format!("{}/kokoros/target/release/koko", home),
+            model_path: format!("{}/kokoros/checkpoints/kokoro-v1.0.onnx", home),
+            voice_data: format!("{}/kokoros/voices-v1.0.bin", home),
+            speed: 1.1,
+            voice_style: "af_heart".to_string(),
+            chunking: ChunkingConfig::default(),
+        }
+    }
+}
+```
+
+Build this app with `cargo build --release`
+
+Then run `echo "Hello, world" | ./target/release/ttsui`