Make links instead of copying

Author: kwankyu

src/doc/Makefile

@@ -22,14 +22,14 @@ clean:
 doc-html:
 	meson compile -C ../../build/sage-distro doc-html
 	mkdir -p $(SAGE_DOC)
-	cp -rf ../../build/sage-distro/src/doc/html $(SAGE_DOC)
-	cp -f ../../build/sage-distro/src/doc/index.html $(SAGE_DOC)
+	ln -s ../../../../build/sage-distro/src/doc/html $(SAGE_DOC)/html
+	ln -s ../../../../build/sage-distro/src/doc/index.html $(SAGE_DOC)/index.html
 	@echo "The html documentation was installed to $(SAGE_DOC)/html."
 
 doc-pdf:
 	meson compile -C ../../build/sage-distro doc-pdf
 	mkdir -p $(SAGE_DOC)
-	cp -rf ../../build/sage-distro/src/doc/pdf $(SAGE_DOC)
+	ln -s ../../../../build/sage-distro/src/doc/pdf $(SAGE_DOC)/pdf
 	@echo "The pdf documentation was installed to $(SAGE_DOC)/pdf."
 
 .PHONY: all clean \