Bump version to 1.20.0

Bump version to 1.19.2

Bump version to 1.19.1

Bump version to 1.19.0

Update screenshots

Bump version to 1.16.1

Remove Windows 7 from README

Fix missing GOPATH variable in releaser workflow (#131)

* Fix missing GOPATH variable in releaser workflow

* Downgrade setup-go to v4

* Set GOPATH manually

* Set GOPATH manually

* Upgrade setup-go to v5

Bump version to 1.15.1

Bump version to 1.15.0