robots: document upstreams & license, fix #34 (#98)

* robots: document upstreams & license, fix #34
10 jobs for devel in 2 minutes and 17 seconds (queued for 6 seconds)
Status Name Job ID Coverage
  Test
passed doc-coverage #129870

00:00:38

passed format #129871

00:00:08

passed robotpkg-example-robot-data-18.04 #129862

00:00:13

passed robotpkg-example-robot-data-20.04 #129863

00:01:14

passed robotpkg-example-robot-data-buster #129864

00:00:10

passed robotpkg-example-robot-data-ferrum #129865

00:00:15

passed robotpkg-py-example-robot-data-18.04 #129866

00:00:37

passed robotpkg-py-example-robot-data-20.04 #129867

00:00:53

passed robotpkg-py-example-robot-data-buster #129868

00:00:37

passed robotpkg-py-example-robot-data-ferrum #129869

00:02:15