unable to download annoations from the main readme.md

[ghost]

Instructions To Reproduce the 🐛 Bug:

1. what changes you made (git diff) or what code you wrote

none```
2. what exact command you run:no commends, just clicked the link

3. what you observed (including __full logs__):nothing happens

``` 4. please simplify the steps as much as possible so they do not require additional resources to run, such as a private dataset.

Expected behavior: download annotations

If there are no obvious error in "what you observed" provided above,
please tell us the expected behavior.

Environment:

Provide your environment information using the following command:

python -m torch.utils.collect_env