Broken hyperlink in intro.md - Documentation

[Salvatore-tech]

Describe the bug
The hyperlink in intro.md that should open the "get_started" page is not valid

Reproduction

1. Go to https://github.com/open-mmlab/mmflow/blob/master/docs/en/intro.md
2. In the section "How to Use this Guide", step 2, click on "get_started" hyperlink
3. It gives 404 page not found

Bug fix
In intro.md file, change the hyperlink from get_started to https://github.com/open-mmlab/mmflow/blob/master/docs/en/get_started.md

Great project, i'm going to study how to use it

[MeowZheng]

Thanks for reporting this bug. Would you have interest in creating a nice pr to fix it?

[Salvatore-tech]

Thanks for the advice, i'm creating it and closing the issue!