404 Error: https://smartbugs.github.io/doc/installation.md

The installation link in this part of [page](https://smartbugs.github.io/) does not work.

```markdown
Installation
SmartBugs has been tested with Linux, MacOS and Windows. It depends on Docker and Python. For details, see the [installation instructions](https://smartbugs.github.io/doc/installation.md).
```
