Pinning Web Sites to Android Homescreen
Android has a Bookmark widget that supports individual sites, and a Bookmarks widget that will display all of your bookmarks.

It looks like you don't want to use the Bookmarks widget, but rather an individual Bookmark.

There are 2 ways:


From within Chrome: Bookmark the site you want to link to. Open the Bookmarks (via Menu > Bookmarks) and long-press the one you want to add. Select Add to home screen 
From the App Launcher: Go to Widgets and find Bookmark (it looks like a red flag with a star on mine) and add that to your home screen. You can then pick whichever bookmark you want.


Either way results in a direct link to the desired bookmarked website.