update readme

README.md

@@ -16,17 +16,10 @@ You can upload the ZIP file to your package registry so that SPM can download it
 The plugin is published on Maven central. Add it to the `plugins` block in the Gradle build file.
 
 ```kotlin
-// settings.gradle.kts
-pluginManagement {
-  repositories {
-    maven ("https://s01.oss.sonatype.org/content/repositories/releases/")
-  }
-}
-
 // build.gradle.kts
 plugins {
   // projects targting kotlin >=1.8.0
-  id("io.github.luca992.multiplatform-swiftpackage") version "2.1.1"
+  id("io.github.luca992.multiplatform-swiftpackage") version "2.1.2"
   // projects targting kotlin <1.8.0
   id("io.github.luca992.multiplatform-swiftpackage") version "2.0.5-arm64"
 }