Merge pull request #2578 from replicatedhq/paigecalvert-patch-3

minor wording update

Author: paigecalvert

docs/vendor/embedded-overview.mdx

@@ -138,7 +138,7 @@ You can configure a custom domain for the `replicated.app` endpoint so that your
 
 ### Using the Vendor API
 
-Some vendors already have a portal that their customers log in to to access documentation or download artifacts. In cases like this, you can serve the Embedded Cluster binary yourself using the Replicated Vendor API.
+Some vendors already have a portal where their customers log in to access documentation or download artifacts. In cases like this, you can serve the Embedded Cluster binary yourself using the Replicated Vendor API.
 
 To serve the binary with the Vendor API: