This line did not appear to be necessary for the tutorial. Testing with it removed appeared to have no effect. Additionally, this line does not appear later in the tutorial when referring back to this step (see /docs/tutorial/image-building-best-practices/index.md).
Signed-off-by: mikesir87 <mikesir87@gmail.com>
Imported from dockersamples/101-tutorial, removed other languages
for now, and replaced PWD references with Docker Desktop.
