docs: python bindings howto
* Confirmed that updates to the tests have significant'y improved that output. * Updated some of the additional notes for the section on hkp4py. ** This is in anticipation adding at least import examples using that module as well. It may also include adding examples of exporting a key and uploading it to the keyservers.
Tested-by: Ben McGinnes <email@example.com>
- Signed-off-by: Ben McGinnes <firstname.lastname@example.org>