Add output to configenvextractor

docs/helpers/extractor.go.tmpl

@@ -22,6 +22,7 @@ type ConfigField struct {
 }
 
 func main() {
+fmt.Println("Generating documentation for environment variables:")
 content, err := ioutil.ReadFile("../../../docs/templates/CONFIGURATION.tmpl")
 if err != nil {
     log.Fatal(err)
@@ -44,6 +45,7 @@ m := map[string]interface{}{
     for pkg, conf := range m {
 	fields = GetAnnotatedVariables(conf)
 	if len(fields) > 0 {
+	fmt.Printf("... %s\n", pkg)
 		targetFile, err = os.Create(filepath.Join(targetFolder, replacer.Replace(pkg) + "_configvars.md"))
 		if err != nil {
 			log.Fatalf("Failed to create target file: %s", err)
@@ -54,6 +56,7 @@ m := map[string]interface{}{
 		}
 	}
     }
+	fmt.Println("done")
 }
 
 func GetAnnotatedVariables(s interface{}) []ConfigField {