Merge pull request #60 from notsag/readme_typo_fix

Fix typo referenced in #49

README.md

@@ -56,7 +56,7 @@ Whether to enable the Kubernetes web dashboard UI (only accessible on the master
     kubernetes_version_kubeadm: 'stable-{{ kubernetes_version }}'
     kubernetes_ignore_preflight_errors: 'all'
 
-Options passed to `kubeadm init` when initializing the Kubernetes master. The `apiserver_advertise_address` defaults to `ansible_default_ipv4.address` if it's left empty.
+Options passed to `kubeadm init` when initializing the Kubernetes master. The `kubernetes_apiserver_advertise_address` defaults to `ansible_default_ipv4.address` if it's left empty.
 
     kubernetes_apt_release_channel: main
     kubernetes_apt_repository: "deb http://apt.kubernetes.io/ kubernetes-xenial {{ kubernetes_apt_release_channel }}"