[v1.2.1]

• Updated build badges.

[v1.2.0]

Added

• Added style guidelines - fixes issue #109.
• Added contributing - fixes issue #102.

Changed

• Converted to Continuous Delivery using Azure DevOps pipeline
  and Sampler - fixes issue #7.

Fixes

• Fixed bug in Invoke-JenkinsCommand and Get-JenkinsCrumb when used in
  PowerShell 7 on Linux - fixes issue #5.