Update makefile with notebook_v3 target

silx/Makefile

@@ -3,11 +3,24 @@ SLIDES = introduction io plot processing conclusion
 
 PNGS_FROM_SVGS=$(shell find | grep \\.svg | sed -e 's/svg$$/png/g')
 
-.PHONY: clean html pdf png
+NOTEBOOK_V3_FROM_NOTEBOOK=$(shell find | grep '\.ipynb$$' | grep -v '\.v3\.' | grep -v '\.ipynb_checkpoints' | sed -e 's/ipynb$$/v3.ipynb/g')
+
+
+.PHONY: clean html pdf png notebook_v3
+
+#
+# RESOURCES
+#
 
 %.png: %.svg
 	inkscape -z $< -e $@
 
+png: $(PNGS_FROM_SVGS)
+
+#
+# SLIDES
+#
+
 build/html/%.html: %/index.rst png
 	@mkdir -p build/html
 	cd $(dir $<);landslide --embed -d ../$@ index.rst
@@ -16,14 +29,26 @@ build/pdf/%.pdf: %/index.rst
 	@mkdir -p build/pdf
 	cd $(dir $<);landslide -d ../$@ index.rst
 
-png: $(PNGS_FROM_SVGS)
-
 html: $(patsubst %,build/html/%.html, $(SLIDES))
 
 build/pdf/slides.pdf: $(patsubst %,build/pdf/%.pdf, $(SLIDES))
 	pdfunite $^ $@
 
 pdf: build/pdf/slides.pdf
 
+#
+# NOTEBOOK
+#
+
+%.v3.ipynb: %.ipynb
+	echo $<
+	jupyter nbconvert --to notebook --nbformat 3 $<
+
+notebook_v3: $(NOTEBOOK_V3_FROM_NOTEBOOK)
+
+#
+# CLEAN
+#
+
 clean:
 	@rm -rf build