cmd/golangorg: fix various comments

Change-Id: I95879652f3c8e44210f1e28e7944755fa2bee676
Reviewed-on: https://go-review.googlesource.com/c/website/+/293417
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/cmd/golangorg/README.md b/cmd/golangorg/README.md
index 233e605..d0017fd 100644
--- a/cmd/golangorg/README.md
+++ b/cmd/golangorg/README.md
@@ -13,8 +13,6 @@
   * the Google Cloud SDK; see https://cloud.google.com/sdk/
   * Redis
   * Go sources under $GOROOT
-  * Godoc sources inside $GOPATH
-    (`go get -d golang.org/x/website/cmd/golangorg`)
 
 Run with the `prod` tag:
 
diff --git a/cmd/golangorg/codewalk.go b/cmd/golangorg/codewalk.go
index 961b008..0f3c13e 100644
--- a/cmd/golangorg/codewalk.go
+++ b/cmd/golangorg/codewalk.go
@@ -6,12 +6,12 @@
 // +build go1.16
 
 // The /doc/codewalk/ tree is synthesized from codewalk descriptions,
-// files named $GOROOT/doc/codewalk/*.xml.
+// files named _content/doc/codewalk/*.xml.
 // For an example and a description of the format, see
 // http://golang.org/doc/codewalk/codewalk or run godoc -http=:6060
 // and see http://localhost:6060/doc/codewalk/codewalk .
 // That page is itself a codewalk; the source code for it is
-// $GOROOT/doc/codewalk/codewalk.xml.
+// _content/doc/codewalk/codewalk.xml.
 
 package main
 
diff --git a/cmd/golangorg/doc.go b/cmd/golangorg/doc.go
index 4c8c2c5..64d8c31 100644
--- a/cmd/golangorg/doc.go
+++ b/cmd/golangorg/doc.go
@@ -35,9 +35,9 @@
 	-templates=""
 		directory containing alternate template files; if set,
 		the directory may provide alternative template files
-		for the files in $GOROOT/lib/godoc
+		for the files in _content/
 
-By default, godoc looks at the packages it finds via $GOROOT and $GOPATH (if set).
+By default, golangorg looks at the packages it finds via $GOROOT (if set).
 This behavior can be altered by providing an alternative $GOROOT with the -goroot
 flag.