Updated readme

Author: AndyButland

README.md

@@ -1,4 +1,4 @@
-# Umbraco.CMS.Integrations
+# Umbraco.Cms.Integrations
 
 This repository houses open-source extensions, created for Umbraco CMS, that integrate with third-party plaforms.
 

src/Umbraco.Cms.Integrations.Commerce.CommerceTools/img/data-type-config.png

@@ -0,0 +1,33 @@
+# Umbraco.Cms.Integrations.Commerce.Hubspot
+
+This integration provides a product and category picker, with data sourced from a [CommerceTools](https://commercetools.com/) installation.
+
+## Prerequisites
+
+Requires minimum versions of Umbraco CMS: 8.5.0
+
+## How To Use
+
+From your CommerceTools account, retrieve the following details add them as application settings to your websites web.config file.
+
+```
+<add key="Umbraco.Cms.Integrations.Commerce.CommerceTools.OAuthUrl" value="https://auth.europe-west1.gcp.commercetools.com/oauth/token" />
+<add key="Umbraco.Cms.Integrations.Commerce.CommerceTools.ApiUrl" value="https://api.europe-west1.gcp.commercetools.com" />
+<add key="Umbraco.Cms.Integrations.Commerce.CommerceTools.ProjectKey" value="" />
+<add key="Umbraco.Cms.Integrations.Commerce.CommerceTools.ClientId" value="" />
+<add key="Umbraco.Cms.Integrations.Commerce.CommerceTools.ClientSecret" value="" />
+<add key="Umbraco.Cms.Integrations.Commerce.CommerceTools.DefaultLanguage" value="en-US" />
+```
+
+With that in place, in the Umbraco back-office click to _Settings > Data Types_ and create a new data type based on the available *CommerceTools Picker*.
+
+The picker can be configured for selection of categories or products, defined as single or multiple picker, as well as other options:
+
+![Data type configuration](./img/data-type-config.png)
+
+When rendering product or category information, a property value converter will provide a strongly typed collection or object with the following fields available:
+
+- [Category](./Models/Category.cs)
+- [Product](./Models/Product.cs)
+
+