Correct device syntax to --gpus

[patel-zeel]

- What I did
Changed device=0,2 to '"device=0,2"'.
- How I did it
Editing run.md.
- How to verify it
By executing both examples and checking which one works.
- Description for the changelog

Improvement in Docs.

- A picture of a cute animal (not mandatory but encouraged)

[thaJeztah]

LGTM, thanks!

These comma-separated values are tricky indeed, as the --gpus flag options are CSV formatted 😥

[codecov-commenter]

Codecov Report

Merging #3414 (2d6ebd1) into master (5bb88dc) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3414   +/-   ##
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  Coverage   56.36%   56.36%           
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  Files         304      304           
  Lines       26816    26816           
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  Hits        15114    15114           
  Misses      10782    10782           
  Partials      920      920           

[patel-zeel]

LGTM, thanks!

Thank you for approving the PR @thaJeztah.

These comma-separated values are tricky indeed, as the --gpus flag options are CSV formatted 😥

Yes, indeed :)

This may help the following issues:

• docker: Error response from daemon: cannot set both Count and DeviceIDs on device request. NVIDIA/nvidia-docker#1026