Quickstart needs a section on jwtsecret at the start of section 2

[0tim0]

When working through the quickstart, the geth example syntax introduces jwtsecret (--authrpc.jwtsecret=jwtsecret) without any previous guidance on how to generate this

[0tim0]

It seems that this is automatically generated by the application if not already in place, it would be helpful to state that, as I spent time trying to figure out how to get this input