Clone submodules recursively, use relative paths

.gitmodules

@@ -1,12 +1,13 @@
 [submodule "flac"]
 	path = flac
-	url = git@github.com:Rillke/flac.git
+	url = ../flac.git
 [submodule "opus-tools"]
 	path = opus-tools
-	url = git@github.com:Rillke/opus-tools.git
+	url = ../opus-tools.git
 [submodule "opus"]
 	path = opus
-	url = git@github.com:Rillke/opus.git
+	url = ../opus.git
 [submodule "libogg"]
 	path = libogg
-	url = git@github.com:Rillke/libogg.git
+	url = ../libogg.git
+

README.md

@@ -19,9 +19,8 @@ If you just want to use opusenc.js, you don't have to build it. In this case, se
 
 ### Build script
 ```bash
-git clone git://github.com/Rillke/opusenc.js.git opusenc.js
+git clone --recursive git://github.com/Rillke/opusenc.js.git opusenc.js
 cd opusenc.js
-git submodule update --init
 ./make.sh
 ```