README.md in simnos-0.1.1.beta1 vs README.md in simnos-0.1.1.beta2

@@ -44,10 +44,14 @@
     -s, --split                      split export DSL file to 1 per topic
         --no-color
                                      no color
         --with-subscriptions
                                      manage subscriptions
+        --recreate-subscriptions
+                                     recreate subscriptions
+        --secret-provider NAME
+                                     use secret value expansion
     -i, --include-names NAMES        include SNS names
     -x, --exclude-names NAMES        exclude SNS names by regex
 ```
 
 ## SNSfile
@@ -111,9 +115,28 @@
 
 sns "ap-northeast-1" do
   include_template "default_policy", topic_name: "test-topic"
 end
 ```
+
+## Secret provider
+
+If you don't want to commit your Basic authentication password, you can use SecretProvider.
+Use --secret-provider option to select provider.(e.g. --secret-provider=vault)
+Expression inside `${...}` is passed to provider.
+
+```
+    subscriptions do
+      subscription protocol: "https", endpoint: "https://user:${password}your.awesome.site/"
+    end
+```
+
+## Subscriptions
+
+There is no way to UPDATE subscription.
+So if you want to recreate subscrptions, use --recreate-subscriptions option.
+It is highly recommended to also path --include-names or exclude-names to select topics.
+Because of Basic authentication password is not returned from API, recreation is needed to change password.
 
 ## Similar tools
 
 * [Codenize.tools](http://codenize.tools/)