Increment minor version

Fix sonarcloud issues

Add package README file

Create customizable comment encoding method (fixes #525)

Merge pull request #516 from jerriep/allow-overriding-literal-text-el…

…ement-encoding

Allows the user to override literal text element content encoding

Use lang preview to enable AppVeyor build

Fix #483

Fix #483

Merge branch 'advisory-fix-1'

Fix #469