feature: Add Jumpstart example notebooks

[bencrabtree]

Issue #, if available:

Description of changes:
Added a section to display all JumpStart example notebooks that use the SageMaker Python SDK.

Testing done:
tox

Merge Checklist

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General

• I have read the CONTRIBUTING doc
• I certify that the changes I am introducing will be backword compatible, and I have discussed concerns about this, if any, with the Python SDK team
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• I have passed the region in to all S3 and STS clients that I've initialized as part of this change.
• I have updated any necessary documentation, including READMEs and API docs (if appropriate)

Tests

• I have added tests that prove my fix is effective or that my feature works (if appropriate)
• I have added unit and/or integration tests as appropriate to ensure backward compatibility of the changes
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• I have used unique_name_from_base to create resource names in integ tests (if appropriate)

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[codecov-commenter]

Codecov Report

Merging #3068 (d425ff9) into master (c424bce) will decrease coverage by 0.07%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3068      +/-   ##
==========================================
- Coverage   89.45%   89.38%   -0.08%     
==========================================
  Files        1033      197     -836     
  Lines       84226    16670   -67556     
==========================================
- Hits        75348    14900   -60448     
+ Misses       8878     1770    -7108     

Impacted Files	Coverage Δ
...on3.7/site-packages/sagemaker/xgboost/estimator.py
...on3.8/site-packages/sagemaker/amazon/record_pb2.py
....7/site-packages/sagemaker/huggingface/__init__.py
...ython3.7/site-packages/sagemaker/debugger/utils.py
...on3.6/site-packages/sagemaker/amazon/object2vec.py
...ges/sagemaker/model_monitor/data_capture_config.py
...hon3.6/site-packages/sagemaker/xgboost/__init__.py
.../py37/lib/python3.7/site-packages/sagemaker/job.py
...s/sagemaker/workflow/pipeline_experiment_config.py
....8/site-packages/sagemaker/feature_store/inputs.py
... and 826 more

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[sagemaker-bot]

AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-unit-tests
• Commit ID: 95b1056
• Result: SUCCEEDED
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[sagemaker-bot]

AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-local-mode-tests
• Commit ID: 95b1056
• Result: SUCCEEDED
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[sagemaker-bot]

AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-unit-tests
• Commit ID: 4d82bdc
• Result: FAILED
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[sagemaker-bot]

AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-local-mode-tests
• Commit ID: 4d82bdc
• Result: SUCCEEDED
• Build Logs (available for 30 days)

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[sagemaker-bot]

AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-local-mode-tests
• Commit ID: d425ff9
• Result: SUCCEEDED
• Build Logs (available for 30 days)

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[sagemaker-bot]

AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-slow-tests
• Commit ID: d425ff9
• Result: SUCCEEDED
• Build Logs (available for 30 days)

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[sagemaker-bot]

AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-unit-tests
• Commit ID: d425ff9
• Result: SUCCEEDED
• Build Logs (available for 30 days)

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