Documentation: getting started missing namespace

[ByteHamster]

Checklist

• I have used the search function for open and closed issues to see if someone else has already submitted the same bug report.
• I will describe the problem with as much detail as possible.
• I build KaMPIng in Debug mode and will include all error and warning messages.

KaMPIng Version

0.1.1

MPI Implementation and Version

Harware (especially network hardware)

No response

First occurred

No response

Minimal Buggy Example

No response

Expected Output

No response

Current Behaviour

https://kamping-site.github.io/kamping/ uses comm.allgatherv(send_buf(input)); but should use comm.allgatherv(kamping::send_buf(input));

Logs

No response