`tools/ghostty/index.md` had its own Custom Shaders section and its own eight-row default
keybinding table. `configuration.md` owns both, in more detail, and the copies had already
drifted: the index claimed `ctrl+` raises the font size where the reference's appendix lists
`ctrl+=` / `ctrl++`. An index exists to route a reader to the page that owns the fact; a second
summary of the same facts just guarantees two versions that age differently.
What the index keeps is the routing plus the one fact worth having at hand (`ctrl+shift+,`
reloads the config), and the config-syntax "Key Points" — repeatable options, `option = ""`
resets, `?` optional includes — which the reference never states as a set, only per option.
Refs #64
Frank
047f264fcf