Link authors and BDFL delegates

[daneah]

Connecting each PEP to its author(s) and BDFL delegate can help understand who has been responsible for many PEPs and specific PEP topics/areas.

Outcome

• Each person who is either an author or a BDFL delegate has their own file containing their name as a level one heading
• Each output PEP file has a section with a list of the authors and BDFL delegate, where each mentioned person is linked to the respective person file