typo

Author: zhangchuang01

script/fs-bench/fio/Dockerfile

@@ -20,5 +20,5 @@ ARG thread=4
 WORKDIR /work
 COPY --from=stage-build /work/root/ /
 
-# Lay out test files here, so that it can be compressed into the image layer.
+# Lay out test files here, so that they can be compressed into the image layer.
 RUN fio -directory=/work -direct=1 -numjobs=$thread -size=$size -name=test -rw=read