readme PT1

README.md

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 # terraform-provider-servicenow-data
 
 Terraform provider that can manage data in any SN table it can Read/Write
+## Limitations
+
+This provider only lets you manage individual rows in Tables, you cannot manage the tables themselves.
+
+## Set-up
+
+The provider requires you to create and configure the tables and Service-Now Beforehand.
+You will also need an account with API Access.,
+
+The provider can also be configured using Environmental variables:
+
+```
+SN_API_URL
+SN_API_USER
+SN_API_PASS
+```
+
+See examples for how to use it.
+