Update for WordPress 5.4

• Minor backend tweaks

Featured image, PHP requirement

• The uploaded file will now be added to the new post as a featured image
• PHP version requirement bumped to 7.2 to match PHP support
• Updated support for WordPress 5.3.2

Clean docs, Add WP steps

This is an internal release, please refer to v1.0.0 for release notes

Actions update

This is an internal release to tweak GitHub Actions, please see v1.0.0 for notes

Initial refactored release

OCR has been overhauled and is now WP Tesseract. The code has all been restructured into the WordPress Plugin Boilerplate, assets and publish Actions added, and the ImageMagick dependency has been replaced with GD.