Add repo fetchers to the docs

[mike-solomon]

Right now, we link out to the repo fetchers in the Moderne organization repo - but it sounds like we want that to live in the docs, too. This could potentially exist in a new customer quickstart guide - or perhaps in the configuring the orgs service docs?

Tasks

Beta Give feedback

1. docs: repository fetchers moved to separate repository mass-ingest-example#21
   +0
2. docs: update with location of new repository fetchers repo moderne-organizations#107
   +0
3. https://github.com/moderneinc/moderne-docs/commit/dc0046adbdd85e136d7eba9aab89d7743f89e30d
4. https://github.com/moderneinc/moderne-organizations-multitenant/issues/212

[sjungling]

https://moderneinc.slack.com/archives/C06UVTSPD29/p1732033062558789?thread_ts=1732026514.686419&cid=C06UVTSPD29

taking @kmccarp's comment as the 🦇 signal to move forward

[sjungling]

https://github.com/moderneinc/repository-fetchers

[sjungling]

really meant to assign myself https://github.com/moderneinc/moderne-organizations-multitenant/issues/212