Fix syntax error in documentation

Author: arioch

README.md

@@ -1032,30 +1032,30 @@ Example usage:
 
 <pre>
 icinga2::object::service { 'example_service':
-$template_to_import = 'generic-service',
-$display_name = 'Example Service',
-$host_name = $::fqdn,
-$groups = ['example-servers', 'linux-servers'],
-$vars = {
-  var1 = 'somevalue',
-  var2 = 'someothervalue',
-},
-$check_command = example-check,
-$max_check_attempts = 5,
-$check_interval = '10m',
-$retry_interval = '1m',
-$enable_notifications = true,
-$enable_active_checks = true,
-$enable_flapping = true,
-$enable_perfdata = true,
-$flapping_threshold = '50%',
-$target_dir         = '/etc/icinga2/objects/services',
-$target_file_name   = "${name}.conf",
-$target_file_ensure = file,
-$target_file_owner  = 'root',
-$target_file_group  = 'root',
-$target_file_mode   = '0644',
-$refresh_icinga2_service = true,
+  $template_to_import      => 'generic-service',
+  $display_name            => 'Example Service',
+  $host_name               => $::fqdn,
+  $groups                  => ['example-servers', 'linux-servers'],
+  $vars                    => {
+    var1                   => 'somevalue',
+    var2                   => 'someothervalue',
+  },
+  $check_command           => example-check,
+  $max_check_attempts      => 5,
+  $check_interval          => '10m',
+  $retry_interval          => '1m',
+  $enable_notifications    => true,
+  $enable_active_checks    => true,
+  $enable_flapping         => true,
+  $enable_perfdata         => true,
+  $flapping_threshold      => '50%',
+  $target_dir              => '/etc/icinga2/objects/services',
+  $target_file_name        => "${name}.conf",
+  $target_file_ensure      => file,
+  $target_file_owner       => 'root',
+  $target_file_group       => 'root',
+  $target_file_mode        => '0644',
+  $refresh_icinga2_service => true,
 }
 
 See [Service](http://docs.icinga.org/icinga2/latest/doc/module/icinga2/chapter/object-types#objecttype-service) on [docs.icinga.org](http://docs.icinga.org/icinga2/latest/doc/module/icinga2/toc) for a full list of parameters.