internal/fetch: add another known alternative module

Change-Id: Iae9a649918d165ac36972fe784728ce341d41871
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/400359
Run-TryBot: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Jamal Carvalho <jamal@golang.org>
diff --git a/internal/fetch/known_alternatives.go b/internal/fetch/known_alternatives.go
index 5207eeb..1cf2cb5 100644
--- a/internal/fetch/known_alternatives.go
+++ b/internal/fetch/known_alternatives.go
@@ -19,6 +19,7 @@
 	"github.com/msopentech/azure-sdk-for-go":       "github.com/Azure/azure-sdk-for-go",
 	"github.com/MSOpenTech/azure-sdk-for-go":       "github.com/Azure/azure-sdk-for-go",
 	"gopkg.in/Azure/azure-sdk-for-go":              "github.com/Azure/azure-sdk-for-go",
+	"gopkg.in/azure/azure-sdk-for-go":              "github.com/Azure/azure-sdk-for-go",
 	"github.com/masslessparticle/azure-sdk-for-go": "github.com/Azure/azure-sdk-for-go",
 	"github.com/aliyun/alibaba-cloud-sdk-go":       "github.com/Azure/azure-sdk-for-go",
 	"github.com/johnstairs/azure-sdk-for-go	": "github.com/Azure/azure-sdk-for-go",