docs: add ASF Incubator application

[janl]

As per The Apache Incubator Cookbook once we secured a champion and mentors, we are due a “Podling Proposal”.

This PR adds the unfilled markdown template provided by the ASF.

c.f. #8999.

[janl]

If you’d like to collaborate, choose any of:

• push commits (not with --force) to the PR branch
• copy a section into a comment and add a response under the PouchDB: heading and I’ll add it back to the document.

Thank you!

[janl]

Dear contributors listed, can you check off if you are happy being listed as an initial maintainer for Apache PouchDB, if your listed email is correct (comment a correction if not), and if your affiliation is correct (comment with a correction if not).

Alba Herrerías Ramírez @AlbaHerrerias

• I’m happy to be an initial maintainer
• My Email address listed is correct
• My affiliation listed is correct

Alex Anderson @alxndrsn

• I’m happy to be an initial maintainer
• My Email address listed is correct
• My affiliation listed is correct

Diana Thayer @garbados

• I’m happy to be an initial maintainer
• My Email address listed is correct
• My affiliation listed is correct

Diana Barsan @dianabarsan

• I’m happy to be an initial maintainer
• My Email address listed is correct
• My affiliation listed is correct

Gareth Bowen @garethbowen

• I’m happy to be an initial maintainer
• My Email address listed is correct
• My affiliation listed is correct

Jan Lehnardt @janl

• I’m happy to be an initial maintainer
• My Email address listed is correct
• My affiliation listed is correct

James Coglan @jcoglan

• I’m happy to be an initial maintainer
• My Email address listed is correct
• My affiliation listed is correct

Johannes Schmidt @jo

• I’m happy to be an initial maintainer
• My Email address listed is correct
• My affiliation listed is correct

Steven-John Lange @SourceR85

• I’m happy to be an initial maintainer
• My Email address listed is correct
• My affiliation listed is correct

[garbados]

I can't click the boxes above. Here are my responses:

• I’m happy to be an initial maintainer: YES
• My Email address listed is correct: YES but I would prefer my name be listed as Diana Belle
• My affiliation listed is correct: YES but I would prefer my name be listed as Diana Belle