I saw in the terms and conditions (T & C) section of the index.rst there is a license.
I have just contacted the man that allowed me to use the scratch source turned useful to the BBB world for the Relay Cape.
I am waiting on his response, i.e. even though I received authority to use the source, I was not sure about licensing.
P.S. And! I technically changed some usage in language (English) for the docs so they are better annotated w/ better understandings and easier command usage. b7d2c84c This commit SHA has failed the Pipeline so far.