[4e8ab6]Update the examples to comply with ARIA 1.3

[shunguoy]

Aria 1.3 updated required and supported states and properties for some roles. The suggested changes are:

• Update terms, links
• Updated Passed Example 3: aria-controls is no longer required by scrollbar role
• Updated Passed Example 6: aria-controls is no longer required by combobox role
• Optionally add more passed examples
• Optionally add more failed examples
• Any other changes needed

@G0dwin could you please work on this if you get some time?
@WilcoFiers