dl: add go1.20.10

Change-Id: I1292332609b5e7b1d99ce84c106b812478867cf6
Reviewed-on: https://go-review.googlesource.com/c/dl/+/534335
Commit-Queue: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Gopher Robot <gobot@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
diff --git a/go1.20.10/main.go b/go1.20.10/main.go
new file mode 100644
index 0000000..70ea998
--- /dev/null
+++ b/go1.20.10/main.go
@@ -0,0 +1,24 @@
+// Copyright 2023 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 go1.20.10 command runs the go command from Go 1.20.10.
+//
+// To install, run:
+//
+//	$ go install golang.org/dl/go1.20.10@latest
+//	$ go1.20.10 download
+//
+// And then use the go1.20.10 command as if it were your normal go
+// command.
+//
+// See the release notes at https://go.dev/doc/devel/release#go1.20.10.
+//
+// File bugs at https://go.dev/issue/new.
+package main
+
+import "golang.org/dl/internal/version"
+
+func main() {
+	version.Run("go1.20.10")
+}