Added datadog sponsorship notice (#58)

Author: goruha

README.md

@@ -10,6 +10,22 @@ description: |-
   actions from the AWS managed locations around the globe, and to monitor internal endpoints from
   [Private Locations](https://docs.datadoghq.com/synthetics/private_locations).
 
+  ## Sponsorship
+
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="https://cloudposse.com/images/partners/datadog-white.svg">
+    <source media="(prefers-color-scheme: light)" srcset="https://cloudposse.com/images/partners/datadog-purple.svg">
+    <img alt="Datadog" src="https://cloudposse.com/images/partners/datadog-purple.svg" align="right" width="40%">
+  </picture>
+
+
+  This project is supported by the [Datadog Open Source Program](https://www.datadoghq.com/partner/open-source/).
+
+  As part of this collaboration, Datadog provides a dedicated sandbox account that we use for automated integration and acceptance testing. This contribution allows us to continuously validate changes against a real Datadog environment, improving reliability and reducing the risk of regressions.
+
+  We are grateful to Datadog for supporting our open source ecosystem and helping ensure that infrastructure code for Terraform remains stable and well-tested
+  ___
+
 usage: |-
   **Stack Level**: Regional
 
@@ -158,31 +174,31 @@ usage: |-
 references:
   - name: Datadog Synthetics
     url: https://docs.datadoghq.com/synthetics
-    description: 
+    description:
   - name: Getting Started with Synthetic Monitoring
     url: https://docs.datadoghq.com/getting_started/synthetics
-    description: 
+    description:
   - name: Synthetic Monitoring Guides
     url: https://docs.datadoghq.com/synthetics/guide
-    description: 
+    description:
   - name: Using Synthetic Test Monitors
     url: https://docs.datadoghq.com/synthetics/guide/synthetic-test-monitors
-    description: 
+    description:
   - name: Create An API Test With The API
     url: https://docs.datadoghq.com/synthetics/guide/create-api-test-with-the-api
-    description: 
+    description:
   - name: Manage Your Browser Tests Programmatically
     url: https://docs.datadoghq.com/synthetics/guide/manage-browser-tests-through-the-api
-    description: 
+    description:
   - name: Browser Tests
     url: https://docs.datadoghq.com/synthetics/browser_tests
-    description: 
+    description:
   - name: Synthetics API
     url: https://docs.datadoghq.com/api/latest/synthetics
-    description: 
+    description:
   - name: Terraform resource `datadog_synthetics_test`
     url: https://registry.terraform.io/providers/DataDog/datadog/latest/docs/resources/synthetics_test
-    description: 
+    description:
 tags:
   - component/datadog-synthetics
   - layer/datadog