Hindi translation of pipeline_tutorial.md
Author: AaryaBalwadkar
Pull request: yes

# What does this PR do?
This PR translates the pipeline_tutorial.md in Hindi language and mentions it in _toctree.yml in doc/source/hi/ folder. Thus  Fixes # 26787
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## Before submitting
- [x] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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## Who can review?

@stevhliu and @MKhalusova please review this PR.

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Models:

- text models: @ArthurZucker and @younesbelkada
- vision models: @amyeroberts
- speech models: @sanchit-gandhi
- graph models: @clefourrier

Library:

- flax: @sanchit-gandhi
- generate: @gante
- pipelines: @Narsil
- tensorflow: @gante and @Rocketknight1
- tokenizers: @ArthurZucker
- trainer: @muellerzr and @pacman100

Integrations:

- deepspeed: HF Trainer/Accelerate: @pacman100
- ray/raytune: @richardliaw, @amogkam
- Big Model Inference: @SunMarc
- quantization (bitsandbytes, autogpt): @SunMarc and @younesbelkada

Documentation: @stevhliu and @MKhalusova

HF projects:

- accelerate: [different repo](https://github.com/huggingface/accelerate)
- datasets: [different repo](https://github.com/huggingface/datasets)
- diffusers: [different repo](https://github.com/huggingface/diffusers)
- rust tokenizers: [different repo](https://github.com/huggingface/tokenizers)

Maintained examples (not research project or legacy):

- Flax: @sanchit-gandhi
- PyTorch: See Models above and tag the person corresponding to the modality of the example.
- TensorFlow: @Rocketknight1

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Comments:
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_26837). All of your documentation changes will be reflected on that endpoint.

Hi @AaryaBalwadkar! Thank you for working on translating the doc page into Hindi. 
From what I see, this is the first time a doc page has been translated into Hindi. As such, you'll need to modify two more files in order to build the docs in a new language - `.github/workflows/build_documentation.yml` and `.github/workflows/build_pr_documentation.yml`.  

Add the two-letter code for your language to the list of languages. You can look up the code [here](https://www.loc.gov/standards/iso639-2/php/code_list.php). 


Done the modification in both the files. Please have a look.


Ok


Made the changes. Please have a look

Thanks! Can you include the changes you made in https://github.com/huggingface/transformers/pull/26855 in this PR as well?