fix newline in create vt code snippet

Author: tolu-paystack

src/doc/terminal/virtual-terminal/create-virtual-terminal/index.sh

@@ -1,10 +1,10 @@
-curl "https://api.paystack.co/virtual_terminal" \
--H "Authorization: Bearer YOUR_SECRET_KEY" \
--H "Content-Type: application/json" \
+curl "https://api.paystack.co/virtual_terminal"
+-H "Authorization: Bearer YOUR_SECRET_KEY"
+-H "Content-Type: application/json"
 -d '{
   "name": "Sales Point #1",
   "destinations": [
     {"target": "+2347081234567"}
   ]
-}' \
+}'
 -X POST