Update readme

Author: onoderis

README.md

@@ -1,14 +1,35 @@
-Failchat is a desktop application for streamers. It aggregates chat messages from multiple sources, shows you viewer count, etc.   
+Failchat is a desktop application for streamers. It aggregates chat messages from multiple sources, shows you viewer
+count, and more.   
 Detailed description could be found [on the site](https://onoderis.github.io/failchat/).
 
-### Requirements
-Java 11 with bundled JavaFX. [Liberica JDK](https://bell-sw.com/pages/downloads/#/java-11-lts) is recommended.
+### Before you run or build
+
+1. Java 11 with bundled JavaFX is
+   required. [Liberica full JDK 11.0.22+12](https://bell-sw.com/pages/downloads/?version=java-11&release=11.0.22%2B12)
+   is
+   recommended.
+
+
+2. Create a file `src/main/resources/config/private.properties` with the following properties and replace the values:
 
-### Before you build
-Create file `src/main/resources/config/private.properties` with the following properties and replace the values:
 ```properties
-twitch.bot-name = BOT_NAME
-twitch.bot-password = BOT_PASSWORD (has prefix "oauth:")
-twitch.client-id = API_TOKEN
-twitch.client-secret = CLIENT_SECRET
+twitch.bot-name=BOT_NAME
+twitch.bot-password=BOT_PASSWORD (has prefix "oauth:")
+twitch.client-id=API_TOKEN
+twitch.client-secret=CLIENT_SECRET
+```
+
+3. In order to do `mvn package` you have to put desired JDK to `jdk/` directory. See goal `build-app-runtime` in pom.xml
+   for additional info.
+
+### How to run
+
+```shell
+./run.sh
+```
+
+### How to build a distributable archive
+
+```shell
+mvn package
 ```