Fixes and suggestions from PR #7 (#8)

* Update README.md * Update payload.rb
pedrofurtado · Jul 13, 2021 · 1a61423 · 1a61423
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diff --git a/README.md b/README.md
@@ -49,10 +49,14 @@ pix = QrcodePixRuby::Payload.new(
   repeatable:     false
 )
 
+# If needed, change the attributes value later
+pix.pix_key = 'minhaoutrachavepix'
+pix.merchant_city = 'BRASILIA'
+
 # QRCode copia-e-cola
 puts pix.payload
 
-# QRCode para uso em imagens
+# QRCode for images
 puts pix.base64
 ```
 
@@ -70,6 +74,10 @@ pix = QrcodePixRuby::Payload.new(
   repeatable:     false
 )
 
+# If needed, change the attributes value later
+pix.url = 'https://another-example.com'
+pix.amount = 1.50
+
 # QRCode copia-e-cola
 puts pix.payload
 

diff --git a/lib/qrcode_pix_ruby/payload.rb b/lib/qrcode_pix_ruby/payload.rb
@@ -71,11 +71,11 @@ def base64
     private
 
     def verify_kwargs(keys)
-      unknows = keys - ATTRIBUTES
+      unknowns = keys - ATTRIBUTES
 
-      return unless unknows.any?
+      return unless unknowns.any?
 
-      raise QrcodePixRuby::PayloadArgumentError, "Unknown attributes: #{unknows.join(', ')}"
+      raise QrcodePixRuby::PayloadArgumentError, "Unknown attributes: #{unknowns.join(', ')}"
     end
 
     def emv(id, value)