SUMO-260843: Add macro docs

Author: charlessumo

website/docs/r/macro.html.markdown

@@ -0,0 +1,51 @@
+---
+layout: "sumologic"
+page_title: "SumoLogic: sumologic_dashboard"
+description: |-
+  Provides a Sumologic Dashboard (New)
+---
+
+# sumologic_macro
+Provides a Sumo Logic Macro (beta).
+
+## Example Usage
+```hcl
+
+resource "sumologic_macro" "ip_macro" {
+  name = "ip_macro"
+  definition = "_sourceCategory=yourcategory | where ip = {{ip_address}} | timeslice 5m | count by _timeslice"
+  argument {
+    name = "ip_address"
+    type = "String"
+  }
+  argument_validation {
+    eval_expression = "isValidIP(ip_address)"
+    error_message = "The ip you provided is invalid"
+  }
+}
+```
+
+## Argument reference
+
+The following arguments are supported:
+
+- `name` - (Required) Name of the macro.
+- `description` - (Optional) Description of the macro.
+- `definition` - (Required) The definition of your macro
+- `enabled` - (Optional) Whether the macro will be enabled. Default true.
+- `argument` - (Block List, Optional) A list of arguments for the macro. They must match the arguments in the definition. See [argument schema](#schema-for-argument) for details.
+- `argumentValidations` - (Block List, Optional) A list validations for the arguments in the macro. See [argumentValidation schema](#schema-for-argumentvalidation)
+for details.
+
+## Attributes reference
+In addition to all arguments above, the following attributes are exported:
+
+- `id` - The ID of the macro.
+
+### Schema for `argument`
+- `name` - (Required) Name of the argument.
+- `type` - (Required) Type of the argument. Must be String, Any, Number or Keyword
+
+### Schema for `argumentValidation`
+- `evalExpression` - (Required) The expression to validate a macro argument.
+- `errorMessage` - (Required) Error message to show when the argument validation failed.