Installation: needs overview of installation methods

[daipom]

Describe the bug

https://docs.fluentd.org/installation

There are multiple installation methods. However, there is no overview of it. So, it is difficult to know which installation method to choose.

Link to the problematic documentation

https://docs.fluentd.org/installation

Expected explanation

Seems like a good idea to have the same overview as the next one.

https://www.fluentd.org/download

Additional context

No response