readme: fix DVC icon

README.md

@@ -35,8 +35,8 @@ Specifically:
   status]. You can [restore] or reset project versions (based on the current Git
   `HEAD` commit) as well as [manage new and existing data] from here.
 - Adds a brand-new [DVC View]
-  (<img src="docs/dvc.png" alt="DVC icon" height="1em"/> in the Activity Bar)
-  with panels to visualize and manage [DVC Experiments].
+  (<img src="../extension/docs/dvc.png" alt="DVC icon" height="1em"/> in the
+  Activity Bar) with panels to visualize and manage [DVC Experiments].
 - Registers several [commands] in the _Command Palette_.
 - Includes a [DVC channel] for the _Output_ panel (useful for
   [debugging](#debugging)).