Create Create a customer in square when a customer created in shopify…

…_instructions.md

resources/markdown/Create a customer in square when a customer created in shopify_instructions.md

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+To refer to these instructions while editing the flow, open [the github page](https://github.com/ot4i/app-connect-templates/blob/master/resources/markdown/Create%20a%20customer%20in%20square%20when%20a%20customer%20created%20in%20shopify.md) (opens in a new window).
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+1. Click **Create flow** to start using the template.
+1. Click **Operations**, then **Edit flow** for the Create Customer operation.
+1. Connect to your [Shopify account](https://partners.shopify.com/).
+1. Click on the Shopify node, and if you're not already connected, connect to your [Shopify account](https://developer.ibm.com/integration/docs/app-connect/how-to-guides-for-apps/).
+1. Connect to your [Square account](https://developer.squareup.com/).   
+1. To start the flow, in the banner open the options menu [⋮] then click **Start flow**.
+
+For more information about this flow, see the tutorial [Creating flows for an API](https://developer.ibm.com/integration/docs/app-connect/tutorials-for-ibm-app-connect/creating-flows-api/).