give example.typ a better name

Makefile

@@ -1,13 +1,13 @@
 .PHONY: view_example
-view_example: example.pdf
+view_example: documentation.pdf
 	xdg-open $<
 
 .PHONY: watch_example
 watch_example:
-	typst watch --font-path template/fonts example.typ & xdg-open example.pdf
+	typst watch --font-path template/fonts example.typ & xdg-open documentation.pdf
 
-.PHONY: example
-example: example.pdf
+.PHONY: documentation
+documentation: documentation.pdf
 
 TO_PACK := $(shell find template -type f) template/LICENSE
 PACK_TARGETS := $(TO_PACK:%=pack/tultemplate2/%) pack/tultemplate2/example.typ \
@@ -19,7 +19,7 @@ pack: pack/tultemplate2.zip
 .PHONY: clean
 clean:
 	rm -rf pack
-	rm -f example.pdf
+	rm -f documentation.pdf
 
 pack/tultemplate2.zip: $(PACK_TARGETS)
 	@mkdir -p $(@D)