diff --git a/README.md b/README.md
index acb031c..8091ac1 100644
--- a/README.md
+++ b/README.md
@@ -9,11 +9,16 @@ JavaFX application for easy cut and send audio to Telegram chat as voice message
  - `ffmpeg` with libopus encoder
 
 
-## Building and running
+## Building
 
-1. Build jar with dependencies: `./gradlew shadowJar`
-2. Edit `app.properties` in `build/libs/Voicyanski-all.jar` archive
-3. Set `telegram-bot-token` and `telegram-chat-id` properties
-4. Run application:
-   `java -jar Voicyanski-all.jar` and drop your audio file window
-   or run `java -jar Voicyanski-all.jar path-to-audio-file.mp3`
\ No newline at end of file
+Build jar with dependencies: `./gradlew shadowJar`. The executable jar will appear as `build/libs/Voicyanski-all.jar`
+
+## Configuration
+
+1. Open .jar file as zip archive and edit `app.properties`.
+2. Set `telegram-bot-token` and `telegram-chat-id` properties
+3. Also you can copy `app.properties` to `%home%/.config/voicyanski.conf`. This file will be read first. You don't need to fill in all props because missing props will fallback to `app.properties`.
+
+## Running
+
+Run `java -jar Voicyanski-all.jar` and drag&drop your music file on the app's window or run `java -jar Voicyanski-all.jar <music file>`. Supported formats: MP3, AAC, WAV
diff --git a/gradlew b/gradlew
old mode 100644
new mode 100755