Update README

Signed-off-by: Markus Blaschke <mblaschke82@gmail.com>

Author: mblaschke

README.md

@@ -25,6 +25,8 @@ Application Options:
       --debug                                          debug mode [$DEBUG]
   -v, --verbose                                        verbose mode [$VERBOSE]
       --log.json                                       Switch log output to json format [$LOG_JSON]
+      --bootstraptoken.id-template=                    Template for token ID for bootstrap tokens (default: {{.Date}}) [$BOOTSTRAPTOKEN_ID_TEMPLATE]
+      --bootstraptoken.id-validation=                  Regexp for validation of bootstrap token IDs (default: ^[a-z0-9]{6}\.[a-z0-9]{16}$) [$BOOTSTRAPTOKEN_ID_VALIDATION]
       --bootstraptoken.name=                           Name for bootstrap tokens (default: bootstrap-token-%s) [$BOOTSTRAPTOKEN_NAME]
       --bootstraptoken.label=                          Label for bootstrap tokens (default: webdevops.kubernetes.io/bootstraptoken-managed) [$BOOTSTRAPTOKEN_LABEL]
       --bootstraptoken.namespace=                      Namespace for bootstrap tokens (default: kube-system) [$BOOTSTRAPTOKEN_NAMESPACE]
@@ -42,7 +44,7 @@ Application Options:
       --cloud-config=                                  Cloud provider configuration path [$CLOUD_CONFIG]
       --azure-environment=                             Azure environment name [$AZURE_ENVIRONMENT]
       --azure.keyvault-name=                           Name of Keyvault to sync token [$AZURE_KEYVAULT_NAME]
-      --azure.keyvault-secret-name=                    Name of Keyvault secret to sync token [$AZURE_KEYVAULT_SECRET_NAME]
+      --azure.keyvault-secret-name=                    Name of Keyvault secret to sync token (default: kube-bootstrapt-token) [$AZURE_KEYVAULT_SECRET_NAME]
       --dry-run                                        Dry run (do not apply to nodes) [$DRY_RUN]
       --bind=                                          Server address (default: :8080) [$SERVER_BIND]