Add image and link to model paper
Now i've had my fun. I thought i could do better but it will do :)
# [Codecov](https://codecov.io/gh/huggingface/transformers/pull/4331?src=pr&el=h1) Report
> Merging [#4331](https://codecov.io/gh/huggingface/transformers/pull/4331?src=pr&el=desc) into [master](https://codecov.io/gh/huggingface/transformers/commit/241759101e7104192d01a07fc70432fa02ae8cb7&el=desc) will **not change** coverage.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/huggingface/transformers/pull/4331/graphs/tree.svg?width=650&height=150&src=pr&token=9qOlN6Hb1c)](https://codecov.io/gh/huggingface/transformers/pull/4331?src=pr&el=tree)

```diff
@@           Coverage Diff           @@
##           master    #4331   +/-   ##
=======================================
  Coverage   78.18%   78.18%           
=======================================
  Files         120      120           
  Lines       20020    20020           
=======================================
  Hits        15652    15652           
  Misses       4368     4368           
```


| [Impacted Files](https://codecov.io/gh/huggingface/transformers/pull/4331?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [src/transformers/file\_utils.py](https://codecov.io/gh/huggingface/transformers/pull/4331/diff?src=pr&el=tree#diff-c3JjL3RyYW5zZm9ybWVycy9maWxlX3V0aWxzLnB5) | `73.44% <0.00%> (-0.42%)` | :arrow_down: |
| [src/transformers/modeling\_tf\_utils.py](https://codecov.io/gh/huggingface/transformers/pull/4331/diff?src=pr&el=tree#diff-c3JjL3RyYW5zZm9ybWVycy9tb2RlbGluZ190Zl91dGlscy5weQ==) | `92.93% <0.00%> (+0.16%)` | :arrow_up: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/huggingface/transformers/pull/4331?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/huggingface/transformers/pull/4331?src=pr&el=footer). Last update [2417591...65588fe](https://codecov.io/gh/huggingface/transformers/pull/4331?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
<|||||>lol, it's great<|||||>You can also add it as a metadata for it to display on social media:

```
---
language: norwegian
thumbnail: https://i.imgur.com/yxnE5GC.png
---
```