Reduce keep_releases from 5 to 3 by default (#11)

Author: ocean90

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Changed
+- Set `keep_releases` option `3` by default.
+
 ## [0.1.2] - 2020-09-23
 
 ### Changed

res/deploy.tpl.php

@@ -23,6 +23,7 @@ function () {
 		);
 	}
 );
+set( 'keep_releases', 3 );
 
 // Load options and hosts from inventory.
 inventory( 'deploy.yml' );