add the new inlined routing configuration example

[zairigimad]

making an example of the new feature in the routing component.

[javiereguiluz]

Not sure if we need another example because we already explain the inlined requirements and default values. See #9520 But let's wait and read other opinions. Thanks!

[wouterj]

Yeah, I don't think we should update all routing examples to use the new inlined syntax (tbh, I don't think it's that clear if you're new). So unless the inline syntax will become the official standard, I would vote to only documented in the section added by #9520 .

This however doesn't mean I don't like your contributions @zairigimad. Thanks a lot for proposing improvements to the docs!

[javiereguiluz]

Let's close this for now in favor of #9520 ... and we'll revisit this decision in the future when people are more used to the new syntax. Thanks!