DOC: shadowserver parser, more examples
DOC: shadowserver parser, more examples

see discussion in certtools/intelmq#555

Signed-off-by: Sebastian Wagner <1b00c120e1c33c7e19a7cb69011b74f705830cf8@sebix.at>

certtools/intelmq,aaronkaplan/intelmq,certtools/intelmq,pkug/intelmq,aaronkaplan/intelmq,pkug/intelmq,pkug/intelmq,aaronkaplan/intelmq,certtools/intelmq,pkug/intelmq