UX-2323 Update Radio Button article: fix images and some text details

Author: OlyaB

images/ui/radiobutton/02_When_to_use_incorrect.png

@@ -19,7 +19,7 @@ Use a radio button group to choose one option from 2 to 4 mutually exclusive opt
 ## When not to use
 
 ### Several options can be selected
-Use a group of [checkboxes](checkbox.md) when several options can be selected.
+Use a group of [checkboxes](checkbox.topic) when several options can be selected.
 
 ### Yes or No Options
 For only two opposing yes/no options, use a checkbox.
@@ -60,7 +60,8 @@ Consider using a [drop-down list](drop_down.md) if:
 * The option might be used less often than other options on the screen.
 * There are other drop-down lists in the same group of UI components. A radio button group is more noticeable than a drop-down list, so it will look like a more important setting.
 * The setting combines several UI components into one control:
-  ![](05_When_to_use_Segmented_button.png){width=706}
+
+![](05_When_to_use_Segmented_button.png){width=706}
 
 ## How to use