Edit README

README.md

@@ -34,10 +34,7 @@ Symbol `X` means all minor versions.
 - [x] 1.16.X
 - [x] 1.17.X
 - [x] 1.18.X
-- [x] 1.19
-- [x] 1.19.1
-- [x] 1.19.2
-- [x] 1.19.3
+- [x] 1.19.X
 
 The server **doesn't** support snapshots.
 
@@ -57,7 +54,7 @@ The installation process is simple.
 1. Download the latest version of program **[here](https://github.com/Nan1t/NanoLimbo/releases)**
 2. Put jar file in the folder you want.
 3. Create a start script as you did it for Bukkit or BungeeCord with command like this:
-`java -jar NanoLimbo-<version>.jar`
+   `java -jar NanoLimbo-<version>.jar`
 4. The server will create `settings.yml` file. It's a server configuration.
 5. Configure it as you want and restart server.
 
@@ -80,12 +77,14 @@ Then add your tokens to `tokens` list.
 You can create pull request, if you found some bug, optimization ability, or you want to add some functional,
 which is suitable for limbo server and won't significantly load the server.
 
+All PR's should be targeted to the `dev` branch to keep the `main` stable and clear.
+
 ### Building
 
 Required software:
 
 * JDK 1.8+
-* Gradle 7+
+* Gradle 7+ (optional)
 
 To build minimized .jar, go to project root and write in terminal: