Removed extra whitespace
Removed index.html from root dir. Slides are in web-basics and wba1-basics-2
Use a - to separate topic and version, see 'Namenskonvention'
Don't use umlauts in filenames
/s/wba1/wba-1/
Added public links to some slides
Restored the example slide, removed in 00bf811, see cb097949575, see #49
Use the right date