fix url address (#450)

twingate/internal/provider/resource/resource.go

@@ -379,7 +379,7 @@ func (r *twingateResource) UpgradeState(ctx context.Context) map[int64]resource.
 				resp.Diagnostics.Append(resp.State.Set(ctx, upgradedState)...)
 
 				resp.Diagnostics.AddWarning("Please update the protocols sections format from a block to an object",
-					"See the v1 to v2 migration guide in the Twingate Terraform Provider documentation https://registry.terraform.io/providers/Twingate/twingate/latest/docs/guides/migrate-guide-v1-to-v2")
+					"See the v1 to v2 migration guide in the Twingate Terraform Provider documentation https://registry.terraform.io/providers/Twingate/twingate/latest/docs/guides/migration-v1-to-v2-guide")
 			},
 		},
 	}