Make relative links to the files mentioned

Author: red

README.md

@@ -2,5 +2,5 @@
 A template for multi-module projects using the Gradle Kotlin DSL
 
 When starting a new project using this template:
- - Change the `group` id in the root `build.gradle.kts` file
- - Change the `rootProject.name` in the `settings.gradle` file
+ - Change the `group` id in the root [build.gradle.kts](build.gradle.kts#L8) file
+ - Change the `rootProject.name` in the [settings.gradle](settings.gradle#L1) file