changed filenames and adapted makefile

Makefile

@@ -13,7 +13,7 @@ BEAMEROPTIONS += --slide-level=1
 REVEALOPRIONS = -t revealjs
 REVEALOPRIONS += --template ./default.revealjs
 # REVEALOPRIONS += -V theme=moon 
-REVEALOPRIONS += -V center=false
+REVEALOPRIONS += -V center=true
 REVEALOPRIONS += -V margin=0
 REVEALOPRIONS += -V minScale=0.2
 REVEALOPRIONS += -V maxScale=2.0
@@ -27,13 +27,13 @@ REVEALOPRIONS += --highlight-style espresso
 
 
 # all: cours.pdf cours.html
-all: cours.html
+all: intro.html
 
 # cours.pdf: cours.md Makefile
 # 	pandoc -s $(BEAMEROPTIONS) -o $@ $<
 
-cours.html: cours.md Makefile
+intro.html: intro.md Makefile
 	pandoc -s $(REVEALOPRIONS) -o $@ $<
 
 clean:
-	rm -rf cours.pdf cours.html
\ No newline at end of file
+	rm -rf intro.html
\ No newline at end of file