[Model card] model card for electra-base QA model
# [Codecov](https://codecov.io/gh/huggingface/transformers/pull/4936?src=pr&el=h1) Report
> Merging [#4936](https://codecov.io/gh/huggingface/transformers/pull/4936?src=pr&el=desc) into [master](https://codecov.io/gh/huggingface/transformers/commit/699541c4b34479451c91b3c6c204d904f62bed83&el=desc) will **increase** coverage by `0.40%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/huggingface/transformers/pull/4936/graphs/tree.svg?width=650&height=150&src=pr&token=9qOlN6Hb1c)](https://codecov.io/gh/huggingface/transformers/pull/4936?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master    #4936      +/-   ##
==========================================
+ Coverage   76.77%   77.17%   +0.40%     
==========================================
  Files         128      128              
  Lines       21723    21723              
==========================================
+ Hits        16677    16764      +87     
+ Misses       5046     4959      -87     
```


| [Impacted Files](https://codecov.io/gh/huggingface/transformers/pull/4936?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [src/transformers/file\_utils.py](https://codecov.io/gh/huggingface/transformers/pull/4936/diff?src=pr&el=tree#diff-c3JjL3RyYW5zZm9ybWVycy9maWxlX3V0aWxzLnB5) | `73.79% <0.00%> (+0.40%)` | :arrow_up: |
| [src/transformers/modeling\_tf\_utils.py](https://codecov.io/gh/huggingface/transformers/pull/4936/diff?src=pr&el=tree#diff-c3JjL3RyYW5zZm9ybWVycy9tb2RlbGluZ190Zl91dGlscy5weQ==) | `87.26% <0.00%> (+0.77%)` | :arrow_up: |
| [src/transformers/modeling\_tf\_xlm.py](https://codecov.io/gh/huggingface/transformers/pull/4936/diff?src=pr&el=tree#diff-c3JjL3RyYW5zZm9ybWVycy9tb2RlbGluZ190Zl94bG0ucHk=) | `75.85% <0.00%> (+19.75%)` | :arrow_up: |

------

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> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/huggingface/transformers/pull/4936?src=pr&el=footer). Last update [699541c...4301a6e](https://codecov.io/gh/huggingface/transformers/pull/4936?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
