:wrench: Use the local metadata file for each generated page

A local metadata file is required (a title is needed in a HTML page).

makefile

@@ -26,11 +26,11 @@ PANDOC_GEN := pandoc --standalone --wrap=none --template src/templates/main.html
 build: $(GEN_FILES)
 	$(info HTML generated)
 
-%.gen.html: %.src.html $(SRC_TEMPLATES)
-	$(PANDOC_GEN) --output $@ $<
+%.gen.html: %.src.html %.meta.yml $(SRC_TEMPLATES)
+	$(PANDOC_GEN) --metadata-file $*.meta.yml --output $@ $<
 
-%.gen.html: %.src.md $(SRC_TEMPLATES)
-	$(PANDOC_GEN) --output $@ $<
+%.gen.html: %.src.md %.meta.yml $(SRC_TEMPLATES)
+	$(PANDOC_GEN) --metadata-file $*.meta.yml --output $@ $<
 
 .PHONY: dist
 dist: $(DIST_DIR)