github issue template suggests who to tag
Fewer issues get lost if people tag the relevant developer. It also saves @LysandreJik time.
While he is out, I figured we could experiment with trying to nudge issue raisers to tag.

Here is the comment at the beginning of the "Bug Report" template:

Your issue 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.
 
 albert, bert, GPT2, XLM: @LysandreJik 
 tokenizers: @mfuntowicz
 Trainer: @julien-c
 Speed and Memory Benchmarks: @patrickvonplaten
 Model Cards: @julien-c
 Translation: @sshleifer
 Summarization: @sshleifer
 TextGeneration: @TevenLeScao 
 examples/distillation: @VictorSanh
 nlp datasets: [different repo](https://github.com/huggingface/nlp)
 rust tokenizers: [different repo](https://github.com/huggingface/tokenizers)
 blenderbot: @mariamabarham
 Bart: @sshleifer
 T5: @patrickvonplaten
 Longformer/Reformer: @patrickvonplaten
 TransfoXL/XLNet: @TevenLeScao 
 examples/seq2seq: @sshleifer
 tensorflow: @jplu 


I wrote it in 3 minutes in case people hate this idea, so I am sure it is missing people!
Suggestions very much appreciated.
# [Codecov](https://codecov.io/gh/huggingface/transformers/pull/5790?src=pr&el=h1) Report
> Merging [#5790](https://codecov.io/gh/huggingface/transformers/pull/5790?src=pr&el=desc) into [master](https://codecov.io/gh/huggingface/transformers/commit/d088d744adb4e5aa45262a34acab3ae9e81de169&el=desc) will **decrease** coverage by `0.84%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/huggingface/transformers/pull/5790/graphs/tree.svg?width=650&height=150&src=pr&token=9qOlN6Hb1c)](https://codecov.io/gh/huggingface/transformers/pull/5790?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master    #5790      +/-   ##
==========================================
- Coverage   78.10%   77.26%   -0.85%     
==========================================
  Files         146      146              
  Lines       26047    26047              
==========================================
- Hits        20344    20125     -219     
- Misses       5703     5922     +219     
```


| [Impacted Files](https://codecov.io/gh/huggingface/transformers/pull/5790?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [src/transformers/modeling\_tf\_mobilebert.py](https://codecov.io/gh/huggingface/transformers/pull/5790/diff?src=pr&el=tree#diff-c3JjL3RyYW5zZm9ybWVycy9tb2RlbGluZ190Zl9tb2JpbGViZXJ0LnB5) | `23.38% <0.00%> (-73.39%)` | :arrow_down: |
| [src/transformers/generation\_tf\_utils.py](https://codecov.io/gh/huggingface/transformers/pull/5790/diff?src=pr&el=tree#diff-c3JjL3RyYW5zZm9ybWVycy9nZW5lcmF0aW9uX3RmX3V0aWxzLnB5) | `83.95% <0.00%> (-2.01%)` | :arrow_down: |
| [src/transformers/modeling\_openai.py](https://codecov.io/gh/huggingface/transformers/pull/5790/diff?src=pr&el=tree#diff-c3JjL3RyYW5zZm9ybWVycy9tb2RlbGluZ19vcGVuYWkucHk=) | `82.31% <0.00%> (+1.28%)` | :arrow_up: |
| [src/transformers/modeling\_tf\_openai.py](https://codecov.io/gh/huggingface/transformers/pull/5790/diff?src=pr&el=tree#diff-c3JjL3RyYW5zZm9ybWVycy9tb2RlbGluZ190Zl9vcGVuYWkucHk=) | `95.18% <0.00%> (+74.91%)` | :arrow_up: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/huggingface/transformers/pull/5790?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/5790?src=pr&el=footer). Last update [d088d74...46f7d0f](https://codecov.io/gh/huggingface/transformers/pull/5790?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
<|||||>I like it! Maybe we can also put in **big** that people should add their env information and not insert screenshots - this happens still quite often from what I see<|||||>@sshleifer I think I've committed instead of suggesting an edit as I wasn't a reviewer, sorry, lemme know if it broke anything!<|||||>ok to merge @julien-c ?<|||||>Like this too! Added myself for issues linked to the documentation, feel free to add more my way.<|||||>@sshleifer could you tag me for `examples/token-classification` 🤔