cask home cmd: update homepage to brew.sh

Library/Homebrew/cask/cmd/home.rb

@@ -4,7 +4,7 @@ module Cask
       def run
         if casks.none?
           odebug "Opening project homepage"
-          self.class.open_url "https://caskroom.github.io/"
+          self.class.open_url "https://brew.sh/"
         else
           casks.each do |cask|
             odebug "Opening homepage for Cask #{cask}"

Library/Homebrew/test/cask/cmd/home_spec.rb

@@ -19,7 +19,7 @@ describe Cask::Cmd::Home, :cask do
   end
 
   it "opens the project page when no Cask is specified" do
-    expect(described_class).to receive(:open_url).with("https://caskroom.github.io/")
+    expect(described_class).to receive(:open_url).with("https://brew.sh/")
     described_class.run
   end
 end