add ubuntu summit slides and assets
ignore intermediary .tex files
add SELF PDF and license
remove year from slides
add self talk
add missing newline
remove geolocation and quotes around click
add missing newline
improve accuracy of container description
progress on lxd talk
[2022-11-07] swap umu.st with earl.run
[2022-11-07] Revert "remove forced light theme"

This reverts commit 9068c5d2fa08723943708099512330f63b3a859e.
[2022-11-07] add beginnings of demo
[2022-11-07] add when to use which
[2022-11-07] spread setup instructions out
[2022-11-07] correct container diagrams
[2022-11-07] add url shortener slides
remove forced light theme