new readme

README.txt

+Installing Stripe as a payment processor in CiviCRM 4.x
+
+Folder structure is left in tact, but there is only 1 file and this is where it goes:  
+Stripe.php in civicrm/CRM/Core/Payment/Stripe.php
+
+Copy Stripe's PHP library folder 'stripe-php' to civicrm/packages/stripe-php  
+You can get Stripe's PHP library here: https://github.com/stripe/stripe-php
+
+Run the included SQL file "civicrm_stripe.sql" to:  
+Insert Stripe into civicrm_payment_processor_type (makes it available as an option within CiviCRM's payment processor settings)
+Create table civicrm_stripe_customers  
+Create table civicrm_stripe_plans
+Create table civicrm_stripe_subscriptions
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