update test description

Author: joeybrown-sf

remote/remote_test.go

@@ -270,7 +270,7 @@ func testImage(t *testing.T, when spec.G, it spec.S) {
 				})
 
 				when("base image is a multi-OS/Arch manifest list", func() {
-					it("returns a base image matching linux/amd64", func() {
+					it("returns a base image matching linux/architecture", func() {
 						manifestListName := "golang:1.13.8"
 						existingLayerDigests := map[string]string{
 							"amd64": "sha256:427da4a135b0869c1a274ba38e23d45bdbda93134c4ad99c8900cb0cfe9f0c9e",