Merge pull request #360 from SumoLogic/readme-fix-terraform-logo

docs: fix terraform logo in main README.md

Author: sumovishal

README.md

@@ -1,5 +1,5 @@
 <a href="https://terraform.io">
-    <img src="https://cdn.rawgit.com/hashicorp/terraform-website/master/content/source/assets/images/logo-hashicorp.svg" alt="Terraform logo" title="Terrafpr," align="right" height="50" />
+    <img src="https://raw.githubusercontent.com/hashicorp/terraform-website/master/public/img/logo-hashicorp.svg" alt="Terraform logo" title="Terrafpr," align="right" height="50" />
 </a>
 
 # Terraform Provider for Sumo Logic