(torchelastic) make --max_restarts explicit in the quickstart and runner docs (#65675)

[kiukchung]

Summary:
closes #65675

The default --max_restarts for torch.distributed.run was changed to 0 from 3 to make things backwards compatible with torch.distributed.launch. Since the default --max_restarts used to be greater than 0 we never documented passing --max_restarts explicitly in any of our example code.

Test Plan: N/A doc change only

Differential Revision: D31279544

cc @pietern @mrshenli @pritamdamania87 @zhaojuanmao @satgera @rohan-varma @gqchen @aazzolini @osalpekar @jiayisuse @SciPioneer @H-Huang

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💊 CI failures summary and remediations

As of commit a3e326e (more details on the Dr. CI page):

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• 1/1 failures introduced in this PR

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🕵️ 1 new failure recognized by patterns

The following CI failures do not appear to be due to upstream breakages:

linux-bionic-py3.6-clang9 / test (default, 1, 2, linux.2xlarge) (1/1)

Step: "Test" (full log | diagnosis details | 🔁 rerun)

2021-09-29T21:50:01.1579094Z RuntimeError: test_jit failed! Received signal: SIGSEGV

2021-09-29T21:50:00.1739959Z   test_pretty_printer (__main__.TestJit) ... ok (0.025s)
2021-09-29T21:50:00.1747631Z   test_print_classes_module (__main__.TestJit) ... ok (0.001s)
2021-09-29T21:50:00.1754277Z   test_print_op_module (__main__.TestJit) ... ok (0.001s)
2021-09-29T21:50:00.1762264Z   test_print_torch_ops_modules (__main__.TestJit) ... ok (0.001s)
2021-09-29T21:50:00.1874271Z   test_profiler (__main__.TestJit) ... ok (0.011s)
2021-09-29T21:50:01.1573406Z   test_python_bindings (__main__.TestJit) ... Traceback (most recent call last):
2021-09-29T21:50:01.1574038Z   File "test/run_test.py", line 1030, in <module>
2021-09-29T21:50:01.1575992Z     main()
2021-09-29T21:50:01.1576586Z   File "test/run_test.py", line 1008, in main
2021-09-29T21:50:01.1578544Z     raise RuntimeError(err_message)
2021-09-29T21:50:01.1579094Z RuntimeError: test_jit failed! Received signal: SIGSEGV
2021-09-29T21:50:01.4199271Z 
2021-09-29T21:50:01.4199710Z real	9m50.934s
2021-09-29T21:50:01.4200134Z user	22m29.936s
2021-09-29T21:50:01.4200649Z sys	1m0.184s
2021-09-29T21:50:01.4200996Z + cleanup
2021-09-29T21:50:01.4201283Z + retcode=1
2021-09-29T21:50:01.4201543Z + set +x
2021-09-29T21:50:01.4202860Z =================== sccache compilation log ===================
2021-09-29T21:50:01.4634003Z =========== If your build fails, please take a look at the log above for possible reasons ===========
2021-09-29T21:50:01.4656435Z Compile requests                     28

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This pull request was exported from Phabricator. Differential Revision: D31279544

[H-Huang]

LGTM!

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D31279544