blog: update logo to link to golang.org

Also updates x/website version to pull in various CSS fixes.

Change-Id: Id0fd49507ccca75b2766d75144484a12cdb70010
Reviewed-on: https://go-review.googlesource.com/c/blog/+/190414
Reviewed-by: Alexander Rakoczy <alex@golang.org>
diff --git a/go.mod b/go.mod
index 4a27c21..5457ffc 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@
 	github.com/gorilla/context v1.1.1
 	golang.org/x/net v0.0.0-20190620200207-3b0461eec859
 	golang.org/x/text v0.3.1-0.20181227161524-e6919f6577db
-	golang.org/x/tools v0.0.0-20190807223507-b346f7fd45de
-	golang.org/x/website v0.0.0-20190807165153-36703a14eb82
+	golang.org/x/tools v0.0.0-20190815144358-9065c182e3b6
+	golang.org/x/website v0.0.0-20190815194901-d43297f9a094
 	gopkg.in/tomb.v2 v2.0.0-20161208151619-d5d1b5820637
 )
diff --git a/go.sum b/go.sum
index 9e84424..9248d75 100644
--- a/go.sum
+++ b/go.sum
@@ -66,10 +66,14 @@
 golang.org/x/tools v0.0.0-20190727173135-db2fa46ec33c/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
 golang.org/x/tools v0.0.0-20190807223507-b346f7fd45de h1:VNumCimp/Bwk6fRqgPHkjiUPZ/vzlpi23/kQTuQ4gBA=
 golang.org/x/tools v0.0.0-20190807223507-b346f7fd45de/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20190815144358-9065c182e3b6 h1:+1pAC+Ra+xeEWKXKBrkf+ctlljiZ8wgLAz8ZSXOjU6c=
+golang.org/x/tools v0.0.0-20190815144358-9065c182e3b6/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/website v0.0.0-20190727171005-df01d8eb50ad h1:A09fOXM2ZA0d+KiPBqzzs7PCHa7cg69ymgYLGZin2fU=
 golang.org/x/website v0.0.0-20190727171005-df01d8eb50ad/go.mod h1:u5ggTGJo4PIUwslQgf8ht7hkVPx0lFfuOcJUNVQZB3g=
 golang.org/x/website v0.0.0-20190807165153-36703a14eb82 h1:+VdJF6Jg4GijGDV8qeSqL4zIDBk9r98faxEXxoQHbbU=
 golang.org/x/website v0.0.0-20190807165153-36703a14eb82/go.mod h1:u5ggTGJo4PIUwslQgf8ht7hkVPx0lFfuOcJUNVQZB3g=
+golang.org/x/website v0.0.0-20190815194901-d43297f9a094 h1:TKAmaYScCMvedkDZ2CKvimKNaKd+s2hZL4U7AYLf/hw=
+golang.org/x/website v0.0.0-20190815194901-d43297f9a094/go.mod h1:u5ggTGJo4PIUwslQgf8ht7hkVPx0lFfuOcJUNVQZB3g=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.0.0-20180910000450-7ca32eb868bf/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
 google.golang.org/api v0.0.0-20181220000619-583d854617af/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
diff --git a/template/root.tmpl b/template/root.tmpl
index 3257a27..9e6bc1f 100644
--- a/template/root.tmpl
+++ b/template/root.tmpl
@@ -83,7 +83,7 @@
 <body class="Site">
   <header class="Header js-header">
     <nav class="Header-nav">
-      <a href="/"><img class="Header-logo" src="/lib/godoc/images/go-logo-blue.svg" alt="Go"></a>
+      <a href="{{.GodocURL}}"><img class="Header-logo" src="/lib/godoc/images/go-logo-blue.svg" alt="Go"></a>
       <button class="Header-menuButton js-headerMenuButton" aria-label="Main menu" aria-expanded="false">
         <div class="Header-menuButtonInner">
       </button>