Clauses for gh-pages update

marketplace/scribblings/Makefile

@@ -1,5 +1,15 @@
 all: out
 
+pages:
+	git clone -b gh-pages ../.. pages
+
+publish: out pages
+	cp -r out/marketplace/. pages/.
+	(cd pages; git add -A)
+	-(cd pages; git commit -m "Update $$(date +%Y%m%d%H%M%S)")
+	(cd pages; git push)
+	rm -rf pages
+
 out:
 	raco scribble \
 		--htmls \
@@ -10,4 +20,4 @@ out:
 		marketplace.scrbl
 
 clean:
-	rm -rf out
+	rm -rf out