Update _index.md

Author: tom-jm69

content/manuals/engine/storage/drivers/_index.md

@@ -47,8 +47,8 @@ RUN rm -r $HOME/.cache
 CMD python /app/app.py
 ```
 
-This Dockerfile contains four commands. Commands that modify the filesystem create
-a layer. The `FROM` statement starts out by creating a layer from the `ubuntu:22.04`
+This Dockerfile contains four commands. Commands that modify the filesystem, create
+a new layer. The `FROM` statement starts out by creating a layer from the `ubuntu:22.04`
 image. The `LABEL` command only modifies the image's metadata, and doesn't produce
 a new layer. The `COPY` command adds some files from your Docker client's current
 directory. The first `RUN` command builds your application using the `make` command,