edit the instruction

README.md

@@ -13,11 +13,11 @@ git clone https://git.wur.nl/harta003/ara-ld.git
 
 ```bash
 cd ara-ld
+# build the image
+docker build -t ara-ld .
 # list available services
 docker-compose config --services
 # start all services or one-by-one
 docker-compose up -d # or add [SERVICE]
-# add the RDF data
-make
 ```