install renders to saved copies for release

Author: Randall C. O'Reilly

Makefile

@@ -4,3 +4,9 @@ all:
 	./citeproc.sh
 	./build
 
+install:
+	cp book.docx ccnbook_ed4.docx
+	cp book.epub ccnbook_ed4.epub
+	cp book.html ccnbook_ed4.html
+	cp book.pdf ccnbook_ed4.pdf
+