Spanish translation of the files sagemaker.mdx and image_classification.mdx
Author: SimplyJuanjo
Pull request: yes

# What does this PR do?

Adds the Spanish version of [sagemaker.mdx](https://github.com/huggingface/transformers/blob/master/docs/source/en/sagemaker.mdx) and [image_classification.mdx](https://github.com/huggingface/transformers/blob/main/docs/source/en/tasks/image_classification.mdx) to [transformers/docs/source/es](https://github.com/huggingface/transformers/tree/master/docs/source/es)

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Fixes https://github.com/huggingface/transformers/issues/15947 (issue)


## Before submitting
- [x] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
- [x] Did you read the [contributor guideline](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md#start-contributing-pull-requests),
      Pull Request section?
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      to it if that's the case.
- [x] Did you make sure to update the documentation with your changes? Here are the
      [documentation guidelines](https://github.com/huggingface/transformers/tree/main/docs), and
      [here are tips on formatting docstrings](https://github.com/huggingface/transformers/tree/main/docs#writing-source-documentation).

## Who can review?

@omarespejel @osanseviero @sgugger 

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Models:

- albert, bert, xlm: @LysandreJik
- blenderbot, bart, marian, pegasus, encoderdecoder,  t5: @patrickvonplaten, @patil-suraj
- longformer, reformer, transfoxl, xlnet: @patrickvonplaten
- fsmt: @stas00
- funnel: @sgugger
- gpt2: @patrickvonplaten, @LysandreJik
- rag: @patrickvonplaten, @lhoestq
- tensorflow: @LysandreJik

Library:

- benchmarks: @patrickvonplaten
- deepspeed: @stas00
- ray/raytune: @richardliaw, @amogkam
- text generation: @patrickvonplaten
- tokenizers: @n1t0, @LysandreJik
- trainer: @sgugger
- pipelines: @LysandreJik

Documentation: @sgugger

HF projects:

- datasets: [different repo](https://github.com/huggingface/datasets)
- rust tokenizers: [different repo](https://github.com/huggingface/tokenizers)

Examples:

- maintained examples (not research project or legacy): @sgugger, @patil-suraj
- research_projects/bert-loses-patience: @JetRunner
- research_projects/distillation: @VictorSanh

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Comments:
_The documentation is not available anymore as the PR was closed or merged._

Thanks for your contribution!

Muchas gracias @SimplyJuanjo for the PR! 🤗 Please let me know if you wish to translate another one.