Merge pull request vega#761 from vega/v3.0.0-beta.27

v3.0.0-beta.27

Merge pull request vega#760 from vega/v3.0.0-beta.26

v3.0.0-beta.26

Merge pull request vega#752 from vega/v3.0.0-beta.25

v3.0.0-beta.25

Merge pull request vega#750 from vega/v3.0.0-beta.24

v3.0.0-beta.24

Update README.md.

Merge pull request vega#739 from vega/v3.0.0-beta.22

v3.0.0-beta.22

Merge pull request vega#734 from vega/kw/view.finalize

[Porting Guide] Include `view.finalize` + Add a few links

Merge pull request vega#733 from vega/v3.0.0-beta.20

v3.0.0-beta.20

Merge pull request vega#730 from vega/v3.0.0-beta.19

v3.0.0-beta.19

Merge pull request vega#728 from vega/v3.0.0-beta.18

v3.0.0-beta.18