CAPAUT-353 Add comments

gradle/build-version.gradle

@@ -1,7 +1,7 @@
 /*
  * Enables version handling on build process
  * 
- * Project: de.captica.expert.config-server
+ * Project: gradle
  * Author: Marc Böhm <marc.boehm@captica.de>
  * License: MIT License (see LICENSE.md)
  * 
@@ -45,6 +45,7 @@ gitVersioning.apply {
     }
 }
 
+// Simple task to write the env shell script to register version env vars
 task writeVersionFile() {
 	doLast {
 		new File(buildDir, 'env-setup.sh').text = """
@@ -67,6 +68,7 @@ echo "CAPTICA_APPLICATION_JAVA_VERSION=\$CAPTICA_APPLICATION_JAVA_VERSION" >> \$
 	}    
 }
 
+// Link up version file task to bootJar
 tasks.named('bootJar').configure {
 	dependsOn writeVersionFile
 }