RMD_DST = $(patsubst _episodes_rmd/%.Rmd,_episodes/%.md,$(RMD_SRC))
# Lesson source files in the order they appear in the navigation menu.
RMD_DST = $(patsubst _episodes_rmd/%.Rmd,_episodes/%.md,$(RMD_SRC))
# Lesson source files in the order they appear in the navigation menu.