update and format

Author: ConnorLand

content/en/docs/appstore/modules/data-widgets/gallery.md

@@ -140,7 +140,9 @@ To improve user experience, it is possible to detect which item has keyboard foc
 
 You can also see when an item is selected: an item with a light gray background is selected.
 
-For the keyboard navigation and keyboard selection to work the user need to have the property `Selection` in `General` tab set to 'Single' or 'Multi', and if the user want the multi selection to work, then the 'Multi' option is the right choice.
+For the keyboard navigation and keyboard selection to work, the user must open the **General** tab and then set the **Selection** property to one of the following:
+* **Single** (to enable keyboard navigation with just single selection)
+* **Multi** (to enable keyboard navigation with multi-selection)
 
 ### 5.1 Keyboard Navigation