Correct documentation for `keyboardEventTarget`.
Share editing default styles
Select interaction options are now optional
Merge pull request #1925 from marcjansen/keyboard-interaction-docs

Correct documentation for `keyboardEventTarget`.
Merge pull request #1750 from tonio/default_editing_style

Share editing default styles
Export ol.coordinate.add
Mention the workshop in the readme
Put reference to workshop in QuickStart
Merge pull request #1930 from fredj/export

Export ol.coordinate.add