Update Readme and test

Author: daianamezdrea

README.md

@@ -251,7 +251,7 @@ Defaults to `false`.
 
 Specifies the version of the containerd runtime the module installs.
 
-Defaults to `1.1.0`.
+Defaults to `1.5.0`.
 
 ### `containerd_install_method`
 

manifests/init.pp

@@ -493,7 +493,7 @@
     'RedHat' => $kubernetes::kubernetes_version,
   },
   String $container_runtime                                      = 'docker',
-  Optional[String] $containerd_version                           = '1.1.0',
+  Optional[String] $containerd_version                           = '1.5.0',
   Enum['archive','package'] $containerd_install_method           = 'archive',
   String $containerd_package_name                                = 'containerd.io',
   Optional[String] $docker_package_name                          = 'docker-engine',