The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/13/tutorial-createdb.html
Description:
In the getting started documentation, it will have been better to start with
how to 'login to postgres' and cover the idea of 'roles'. Or if previously
done, refer reader to the relevant section.
The explanation on how to use createdb command can follow. This can avoid
considerable problems for a user following the tutorial.