update build instructions

Author: contrun

Makefile

@@ -8,6 +8,9 @@ endif
 
 all: convert build serve
 
+submodule:
+	git submodule update --recursive --init
+
 release: convert build-minial
 
 convert:

README.md

@@ -1,7 +1,6 @@
 # Build instructions
 
 ```bash
-emacs --batch -l publish.el --eval "(publish-all)"
-git submodule update --recursive --init
-hugo
+make submodule
+make
 ```