Make cannot deal with spaces in filenames.

Is make wrong, or is it your filename?

docs/Makefile

@@ -1,16 +1,7 @@
 #docs      := $(wildcard *.ipynb)
 #docs_html := $(patsubst %.ipynb,%.html,$(docs))
 
-.PHONY: poop nospaces yesspaces
-
-# https://stackoverflow.com/a/45531875
-# Make cannot handle spaces in filenames, so temporarily rename them
-nospaces:
-	rename -v 's/ /%20/g' *\ *
-
-# After Make is done, rename files back to having spaces
-yesspaces:
-	rename -v 's/%20/ /g' *%20*
+.PHONY: poop
 
 
 poop: *.ipynb