[jenkins-infra/update-center2] c1eea0: Add readme for deprected plugin

Branch: refs/heads/mavenless-plus Home: https://github.com/jenkins-infra/update-center2 Commit: c1eea0b0c45ee849d2c23d732909f8fb1623c530 https://github.com/jenkins-infra/update-center2/commit/c1eea0b0c45ee849d2c23d732909f8fb1623c530 Author: Zbynek Konecny Date: 2020-04-13 (Mon

[jenkins-infra/update-center2] c1eea0: Add readme for deprected plugin

Branch: refs/heads/master Home: https://github.com/jenkins-infra/update-center2 Commit: c1eea0b0c45ee849d2c23d732909f8fb1623c530 https://github.com/jenkins-infra/update-center2/commit/c1eea0b0c45ee849d2c23d732909f8fb1623c530 Author: Zbynek Konecny Date: 2020-04-13 (Mon, 13 Apr