[Security] wordpress/wordpress-ha* - Update to WordPress 5.0.1

[Bug Fix] state/elasticache-memcached - DeletionPolicy snapshot not s…

…upported

[Improvement] * - Optimize DeletionPolicy

fix docs layout

update cfn-lint to 0.8.2

[Security] jenkins/jenkins-ha* - Update Jenkins to 2.138.2

[Improvement] * - Modularize CloudWatch Logs configuration