Update README

README.md

@@ -43,6 +43,11 @@ You can find official dev builds here:
 
 **Maven Repo:** https://repo.viaversion.com
 
+Building:
+--------
+
+After cloning this repository, build the project with Gradle by running `/gradlew build` and take the created jar out of the `build/libs` directory.
+
 License:
 --------
 

build.gradle.kts

@@ -7,7 +7,7 @@ plugins {
 
 allprojects {
     group = "us.myles"
-    version = "3.3.0-21w08a-gradle"
+    version = "3.3.0-21w08a"
     description = "Allow newer clients to join older server versions."
 }