SageMaker pipeline step decorator blog (#4715)

* initial commit of using step decorator for bedrock fine tuning

* ran black command on the notebook

* Added CI badges

* Added CI badges

* fixed typo in notebook title

* added comments and reviewer feedback

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Co-authored-by: Ashish Rawat <[email protected]>
Co-authored-by: Zhaoqi <[email protected]>

Author: 3 people