add separate script for compiling presentation

prepare_presentation.sh

@@ -9,12 +9,4 @@ echo Getting E-Mail
 echo Generating
 ./generate.py --presentation >"$dest_file"
 
-echo Compiling
-mkdir -p data/presentation
-cd data/presentation/
-
-for _ in $(seq 3); do
-	pdflatex "$dest_file"
-done
-
-ln -srf "presentation_$(date +%Y-%m-%d).pdf" ../../presentation.pdf
+./compile_presentation.sh