Remove coveralls.io badge when generating HTML/PDF docs

Author: craigbarnes

mk/doc.mk

@@ -11,7 +11,7 @@ README.html: README.md doc/template.html doc/style.css.inc
 	$(PANDOC) -S --toc --template $(word 2, $^) -H $(word 3, $^) -o $@ $<
 
 README.pdf: doc/metadata.yml README.md
-	sed '/^\[!\[Build Status/d' $^ | \
+	sed '/^\[!\[/d' $^ | \
 	  $(PANDOC) --toc -M date='$(DATE)' -V geometry:margin=3.5cm -o $@
 
 doc/style.css.inc: doc/style.css