Reorganize files to account for new "External" section

QubesOS/qubes-issues#4693

developer/releases/todo.md

@@ -0,0 +1,40 @@
+---
+layout: doc
+title: Release Checklist
+permalink: /doc/releases/todo/
+redirect_from:
+- /en/doc/releases/todo/
+---
+
+Release Checklist
+=================
+
+*the checklist is probably unfinished*
+
+On -rc1
+-------
+* write schedule
+* create package repositories (linux-yum, linux-deb)
+* update repository definition (core-agent-linux, installer-qubes-os/qubes-release)
+* push all packages to `current-testing`
+* draft release notes, one note per feature
+* create upgrade package in previous release branch (r2->r3.0, r3.0->r3.1, etc) - core-agent-linux
+* make sure that keys for the current release are included in previous release's qubes-release package (for upgrade)
+* build ISO and push to mirrors
+
+On subsequent -rc
+-----------------
+* push packages to `current`
+* update release notes
+* build ISO and push to mirrors
+* notify @Rudd-O about the new ISO for new torrent hosting
+
+On final release
+----------------
+* push packages to `current`
+* finish release notes
+* update InstallationInstructions
+* build ISO and push to mirrors
+* notify @Rudd-O about the new ISO for new torrent hosting
+* write blog post
+* announce on Twitter