Update compact.rb

spelling error that drove me insane

Author: rbarisic

lib/jwe/serialization/compact.rb

@@ -7,7 +7,7 @@ def self.encode(header, encrypted_cek, iv, ciphertext, tag)
 
       def self.decode(payload)
         parts = payload.split('.')
-        raise JWE::DecodeError.new('Not enaugh or too many segments') unless parts.length == 5
+        raise JWE::DecodeError.new('Not enough or too many segments') unless parts.length == 5
 
         parts.map do |part|
           JWE::Base64.jwe_decode(part)