devapp/owners: narrow down dmitshur's ownership in x/website

I've been a primary owner of golang.org/x/website since the repository
was initially created in January 2019 for factoring out the golang.org
serving code out x/tools/cmd/godoc (golang.org/issue/29206), a project
that Channing Kimble-Brown and I worked on.

By now, all static content of golang.org has moved from the main Go
repository's doc directory into x/website/_content. Additionally,
the go.dev, blog.golang.org, and tour.golang.org websites as well
as their static content have also recently moved into x/website.

There's no good reason for me to continue to be the primary (and only!)
owner of all the content and serving code for those web properties,
and get automatically assigned as a reviewer for all x/website CLs.
Instead, narrow down my ownership to be over the website's serving
code (easy to maintain), the golang.org/dl download server, and
the Go release history (relevant to releases).

Change-Id: I4a77e039bf62baa2280fbc08d3a1b8e9e43aad43
Reviewed-on: https://go-review.googlesource.com/c/build/+/335209
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
diff --git a/devapp/owners/table.go b/devapp/owners/table.go
index 5c0a450..4be60c4 100644
--- a/devapp/owners/table.go
+++ b/devapp/owners/table.go
@@ -830,7 +830,16 @@
 	"vulndb": {
 		Primary: []Owner{filippo, katie, roland},
 	},
-	"website": {
+	"website/cmd/admingolangorg": {
+		Primary: []Owner{dmitshur},
+	},
+	"website/cmd/golangorg": {
+		Primary: []Owner{dmitshur},
+	},
+	"website/internal/dl": {
+		Primary: []Owner{dmitshur},
+	},
+	"website/internal/history": {
 		Primary: []Owner{dmitshur},
 	},