add readme attempt

about.md

@@ -2,44 +2,9 @@
 
 Adds node IDs to layers for other mods to base their UI on, for preserving mod compatibility. See the [Github repository](https://github.com/geode-sdk/NodeIDs) for contributing.
 
-Has IDs for:
+## Why is this needed?
+Back in the ancient times we had to get objects by their indices - whenever you wanted to get the play button in the main menu, you had to know it was the 3rd button added there.
 
-- CommentCell
-- CreatorLayer
-- CustomizeObjectLayer (Windows and Android only)
-- ChallengeNode
-- ChallengesPage
-- CharacterColorPage
-- DailyLevelNode
-- DailyLevelPage
-- EditLevelLayer
-- EditorPauseLayer
-- EditorUI
-- FLAlertLayer
-- GauntletNode
-- GauntletSelectLayer
-- GJCommentListLayer
-- GJDropDownLayer
-- GJGarageLayer
-- GJListLayer
-- GJScoreCell
-- InfoLayer
-- LeaderboardsLayer
-- LevelAreaInnerLayer
-- LevelBrowserLayer
-- LevelCell
-- LevelEditorLayer
-- LevelInfoLayer
-- LevelLeaderboard
-- LevelPage
-- LevelSearchLayer
-- LevelSelectLayer
-- MoreOptionsLayer
-- OptionsLayer
-- PauseLayer
-- PlayLayer
-- ProfilePage
-- RewardsPage
-- SecretRewardsLayer
-- SetGroupIDLayer
-- UILayer
+At first this approach seemed to work well, but then several issues were found - what if a mod adds its own button before all others? What if it removes a button RobTop added? Now the 3rd button might be something completely different!
+
+Geode provides a solution - Node IDs. Now you don't need to bother with numbers at all! Instead you grab "play-button" and you're always guaranteed to get the correct button, even if some other mod completely reorganizes the main menu.