spelling fix

Author: Michael Potter

test/plot-schema.json

@@ -44150,7 +44150,7 @@
      "editType": "calc",
      "hovercolor": {
       "arrayOk": true,
-      "description": "Sets the `link` hover color. It can be a single value, or an array for specifying hovor colors for each `link`. If `link.hovercolor` is omitted, then by default, links will become solid grey when hovered over.",
+      "description": "Sets the `link` hover color. It can be a single value, or an array for specifying hover colors for each `link`. If `link.hovercolor` is omitted, then by default, links will become solid grey when hovered over.",
       "editType": "calc",
       "valType": "color"
      },