Update README.md (by Terraform)

Author: m110

README.md

@@ -1,5 +1,5 @@
 # Watermill HTTP Pub/Sub
-<img align="right" width="200" src="https://threedots.tech/watermill-io/watermill-logo.png">
+<img align="right" width="200" src="https://watermill.io/img/gopher.svg">
 
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