dl: add go1.11.5 and go1.10.8

Change-Id: I40c3a14abf6922b057159fc676291f46a4bbeb44
Reviewed-on: https://go-review.googlesource.com/c/159237
Reviewed-by: Filippo Valsorda <filippo@golang.org>
diff --git a/go1.10.8/main.go b/go1.10.8/main.go
new file mode 100644
index 0000000..f548e3d
--- /dev/null
+++ b/go1.10.8/main.go
@@ -0,0 +1,24 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// The go1.10.8 command runs the go command from Go 1.10.8.
+//
+// To install, run:
+//
+//     $ go get golang.org/dl/go1.10.8
+//     $ go1.10.8 download
+//
+// And then use the go1.10.8 command as if it were your normal go
+// command.
+//
+// See the release notes at https://golang.org/doc/go1.10
+//
+// File bugs at https://golang.org/issues/new
+package main
+
+import "golang.org/dl/internal/version"
+
+func main() {
+	version.Run("go1.10.8")
+}
diff --git a/go1.11.5/main.go b/go1.11.5/main.go
new file mode 100644
index 0000000..a007c2f
--- /dev/null
+++ b/go1.11.5/main.go
@@ -0,0 +1,24 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// The go1.11.5 command runs the go command from Go 1.11.5.
+//
+// To install, run:
+//
+//     $ go get golang.org/dl/go1.11.5
+//     $ go1.11.5 download
+//
+// And then use the go1.11.5 command as if it were your normal go
+// command.
+//
+// See the release notes at https://golang.org/doc/go1.11
+//
+// File bugs at https://golang.org/issues/new
+package main
+
+import "golang.org/dl/internal/version"
+
+func main() {
+	version.Run("go1.11.5")
+}