[english] add more slides

diff --git a/english/oral-pres.pdf b/english/oral-pres.pdf
index a8bc068581a212022c98de92ed8d8f9f2228ca15..689bd0e22643327fc4ab2db93960fd6bafcab189 100644 (file)
Binary files a/english/oral-pres.pdf and b/english/oral-pres.pdf differ