Need to add visual examples and transition docs

[nadvolod]

Need to add examples like here https://github.com/saucelabs-training/demo-java/blob/main/selenium-junit4-examples/src/test/java/com/saucedemo/selenium/junit4/SimpleVisualE2ETest.java#L115-L158
Also, should create some docs on how to make the transition from old way to new way

Originally posted by @nadvolod in #290 (comment)