Goa introduction breaks

[Guido Witmond]

Hi Norman,

I'm running the goa Hello-example from the genodians page 
https://www.genodians.org/nfeske/2019-11-25-goa


However, I got this error at the goa run step:

     $ goa run
     Error: runtime lacks a configuration

     You may declare a 'config' attribute in the <runtime> node, or
     define a <config> node inside the <runtime> node.

I fixed it by adding a <config /> node in pkg/hello/runtime. ie:

     <runtime ram="1M" caps="100" binary="hello">
     <config />
     ...


You might want to update the genodians page so it keeps working for others.


Cheers, Guido.