diff --git a/README.md b/README.md
index 793e2a3..714e846 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,12 @@ This is a newer version of https://github.com/rimian/discourse-donations. Many t
 * Add your Stripe public and private keys in settings and set the currency to your local value.
 * Enable the plugin and wait for people to donate money.
 
+## Usage
+
+Enable the plugin and enter your Stripe API keys in the settings. You can also configure amounts and the default currency.
+
+Visit `/patrons`
+
 ## Testing
 
 ## Warranty
diff --git a/spec/controllers/discourse_patrons/patrons_controller_spec.rb b/spec/controllers/discourse_patrons/patrons_controller_spec.rb
index a249e2a..878111f 100644
--- a/spec/controllers/discourse_patrons/patrons_controller_spec.rb
+++ b/spec/controllers/discourse_patrons/patrons_controller_spec.rb
@@ -36,6 +36,12 @@ module DiscoursePatrons
         post :create, params: {}, format: :json
         expect(response).to have_http_status(200)
       end
+
+      it 'has curency' do
+        ::Stripe::PaymentIntent.expects(:create).with(has_entry(:currency, 'AUD'))
+        post :create, params: {}, format: :json
+        expect(response).to have_http_status(200)
+      end
     end
   end
 end