Update configuration_big_bird.py
Author: parsa-ra
Pull request: yes

Fixing backtick alignments

# What does this PR do?

<!--
Congratulations! You've made it this far! You're not quite done yet though.

Once merged, your PR is going to appear in the release notes with the title you set, so make sure it's a great title that fully reflects the extent of your awesome contribution.

Then, please replace this with a description of the change and which issue is fixed (if applicable). Please also include relevant motivation and context. List any dependencies (if any) that are required for this change.

Once you're done, someone will review your PR shortly (see the section "Who can review?" below to tag some potential reviewers). They may suggest changes to make the code even better. If no one reviewed your PR after a week has passed, don't hesitate to post a new comment @-mentioning the same persons---sometimes notifications get lost.
-->

<!-- Remove if not applicable -->

Fixes # (issue)


## Before submitting
- [x] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
- [ ] Did you read the [contributor guideline](https://github.com/huggingface/transformers/blob/master/CONTRIBUTING.md#start-contributing-pull-requests),
      Pull Request section?
- [ ] Was this discussed/approved via a Github issue or the [forum](https://discuss.huggingface.co/)? Please add a link
      to it if that's the case.
- [ ] Did you make sure to update the documentation with your changes? Here are the
      [documentation guidelines](https://github.com/huggingface/transformers/tree/master/docs), and
      [here are tips on formatting docstrings](https://github.com/huggingface/transformers/tree/master/docs#writing-source-documentation).
- [ ] Did you write any new necessary tests?


## Who can review?

Anyone in the community is free to review the PR once the tests have passed. Feel free to tag
members/contributors who may be interested in your PR.

<!-- Your PR will be replied to more quickly if you can figure out the right person to tag with @

 If you know how to use git blame, that is the easiest way, otherwise, here is a rough guide of **who to tag**.
 Please tag fewer than 3 people.

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

 -->


Comments:
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_16064). All of your documentation changes will be reflected on that endpoint.

@patil-suraj Sry for the late response, Any idea on what would be the problem? 
```bash
make style
black examples tests src utils
Skipping .ipynb files as Jupyter dependencies are not installed.
You can fix this by running ``pip install black[jupyter]``
All done! ✨ 🍰 ✨
1489 files left unchanged.
isort examples tests src utils
Skipped 1 files
make autogenerate_code
make[1]: Entering directory '/home/parano/github/dev/transformers'
  File "setup.py", line 212
    entries = "\n".join([f'    "{k}": "{v}",' for k, v in deps.items()])
                                            ^
SyntaxError: invalid syntax
make[1]: *** [Makefile:22: deps_table_update] Error 1
make[1]: Leaving directory '/home/parano/github/dev/transformers'
make: *** [Makefile:64: style] Error 2

```

> @patil-suraj Sry for the late response, Any idea on what would be the problem?
> 
> ```shell
> make style
> black examples tests src utils
> Skipping .ipynb files as Jupyter dependencies are not installed.
> You can fix this by running ``pip install black[jupyter]``
> All done! ✨ 🍰 ✨
> 1489 files left unchanged.
> isort examples tests src utils
> Skipped 1 files
> make autogenerate_code
> make[1]: Entering directory '/home/parano/github/dev/transformers'
>   File "setup.py", line 212
>     entries = "\n".join([f'    "{k}": "{v}",' for k, v in deps.items()])
>                                             ^
> SyntaxError: invalid syntax
> make[1]: *** [Makefile:22: deps_table_update] Error 1
> make[1]: Leaving directory '/home/parano/github/dev/transformers'
> make: *** [Makefile:64: style] Error 2
> ```

Make sure you have python>=>=3.6.0 and the required versions black. You can install the correct style deps by using

`pip install transformers["quality"]`

@patil-suraj The problem arises since `make` by default assumes that when we call `python` we mean `python2`, not `python3` (At least in my system, ubuntu 20.04.4 LTS), may be we should change the `python` commands in the `setup.py` and `Makefile` to `python3`, since making and `alternative` or `alias` for python3 is not actually a very good idea (as can be seen they are not presenting the same kind of functionalities ... ) We might also ask for the comments of maintainers ... 

This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the [contributing guidelines](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md) are likely to be ignored.