double quotes

Author: JackSpagnoliNHS

README.md

@@ -62,9 +62,9 @@ USER root
 # specify DOCKER_GID to force container docker group id to match host
 RUN if [ -n "${DOCKER_GID}" ]; then \
     if ! getent group docker; then \
-    groupadd -g ${DOCKER_GID} docker; \
+    groupadd -g "${DOCKER_GID}" docker; \
     else \
-    groupmod -g ${DOCKER_GID} docker; \
+    groupmod -g "${DOCKER_GID}" docker; \
     fi && \
     usermod -aG docker vscode; \
     fi