doc(presentation): change contact address

change contact email

doc(extended): enable naviagion hints

docs(*): add extended alias

docs(mueller): add 60 Min variant of presentation

docs(README): include abstract

chore(.gitignore): ignore build files

feat(presentation): enable viewer hints and autoslide

fix(text block): add better example

docs(*): provide README and LICENCE information

feat(samples): provide JDK9-13 code samples

docs(HTML5 slides): add presentation

docs(Github docs): add placeholder document