update Dockerfile

Dockerfile

@@ -8,6 +8,5 @@ WORKDIR /app
 COPY ./flag.txt .
 COPY ./spell-warz .
 
-CMD socat tcp-listen:12345,reuseaddr,fork EXEC:\"./spell-warz\"
-
 EXPOSE 12345/tcp
+CMD socat tcp-listen:12345,reuseaddr,fork EXEC:./spell-warz