Change description and success message for lnurlp

closes #46

app/controllers/lnurlpay_controller.rb

@@ -28,7 +28,7 @@ class LnurlpayController < ApplicationController
       status: "OK",
       successAction: {
         tag: "message",
-        message: "Payment received. Thanks!"
+        message: "Sats received. Thank you!"
       },
       routes: [],
       pr: payment_request
@@ -44,7 +44,7 @@ class LnurlpayController < ApplicationController
   end
 
   def metadata(address)
-    "[[\"text/identifier\", \"#{address}\"], [\"text/plain\", \"Sats for #{address}\"]]"
+    "[[\"text/identifier\", \"#{address}\"], [\"text/plain\", \"Send sats, receive thanks.\"]]"
   end
 
   def validate_amount(amount)