Add documenation of /docker-entrypoint-initdb.d

[md5]

Documents docker-library/postgres#22

[yosifkit]

Thanks for the contributions.
One minor nitpick, can you reflow to 80 columns? (vim, :set tw=80, retype last character)

Otherwise, LGTM, cc @tianon

[md5]

The reason I left the long line in my addition was that the rest of the file already had unwrapped lines. I don't mind reflowing the whole file if that's what you want though.

[yosifkit]

Oh, no problem, this one had not yet had the flowing. You can leave it without the wrapping. I'll work on a PR once we merge this that will reflow all the files that need it.

[tianon]

So much gushing. This is beautiful, and even includes a link to upstream's documentation with hints about how to make really cool changes easily. Rock on, man.

LGTM

[md5]

🤘

[tianon]

As a side note, are you in #docker-library on Freenode? :)

(You seem really interested in the Postgres image, so I'd love to have you
around more often so we can make use of your thoughts, and maybe consider
some co-maintenance if you're interested in such a thing. ;))

[md5]

I'm not on IRC all that much. Usually only when I'm impatient about getting a question answered and think that's where I can find the developers of a project I'm using.

As for my interest in the Postgres image, I'm primarily working right now on a POC of running iNaturalist.org under Docker. I need to get a solid Postgres image with Postgis functionality to make that happen, among other bits I've yet to work out.

[tianon]

Aww, fair enough. At least you know you have our love and appreciation. ♥