No Contextual Links (Pencil Icons) or Text Editor in the Body Fields

I just got Drupal 8 installed two days ago and started to go through the manual and tutorials, when I noticed that the edit icons (pencils) don’t show up when I’m logged in as an administrator and user/1.  (I’m using the Bartik theme.)  I also noticed that none of the body fields–like the one for writing articles–have a text editor in them.  I’m able to access and edit other parts of the pages, like content, themes, modules, etc., but I was wondering if I missed something while setting everything up.  Or are these features that have been dropped from Drupal?  I searched the forum and docs for information about this, but didn’t find anything.  Thanks!

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