Add customer_is to subscription creation doc#302

anshulakotiya wants to merge 1 commit intorazorpay:masterrazorpay/razorpay-python:masterfrom

anshulakotiya:add-customer_id-to-subscription-creation-docanshulakotiya/razorpay-python:add-customer_id-to-subscription-creation-docCopy head branch name to clipboard