[docker] update container ID in script

docker/README.md

@@ -9,7 +9,7 @@ LustreC.
 - an opam distribution with Frama-C and Z3 installed
 
 This can be used to test LustreC: clone the LustreC repository, pull
-the image and run the `run_docker.sh` script available in the
+the image and run the `run-docker.sh` script available in the
 `scripts` directory. LustreC and the associated WP strategies are
 built in the host clone of LustreC and you can run tests inside the
 container.

scripts/run-docker.sh

@@ -14,7 +14,7 @@ usage () {
 }
 
 # default values
-CONTAINER_ID=gitlab-registry.isae-supaero.fr/lustrec/lustrec/lustrec-run:latest
+CONTAINER_ID=gitlab-registry.isae-supaero.fr/lustrec/lustrec/lustrec-run
 TMP_DIR=/tmp
 
 # check if docker is available