new readme

README.md

-Installing Stripe as a payment processor in CiviCRM 4.x
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-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
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-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
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-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