no-mistakes(document): correct Pi changelog icon-grid claim

CHANGELOG.md

@@ -13,16 +13,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   robot glyph every unbranded agent shares, so a Pi tab was indistinguishable
   from an Aider or Qwen one in the sidebar, the tab chip and the tray menu. They
   now carry their own avatar on the existing sky accent, status dot unchanged.
-  The mark is Pi's own, from pi.dev, rescaled to the same 24x24 grid as the
-  other bundled brand marks — its `prefers-color-scheme` stylesheet dropped,
-  since these avatars are tinted by the app. Restoring a Pi pane also resumes its
-  conversation now: the tty7 extension reports Pi's session id, and the resume
-  command is `pi --session <id>` (Pi's `--resume` is a boolean that only opens
-  the interactive picker), with `--session` / `--session-id` / `--fork` /
-  `--resume` / `-r` / `--continue` / `-c` stripped off the replayed launch flags
-  so the restored id wins. A pane launched with `--no-session` is not resumed at
-  all — that pane never wrote a session to disk, and reopening one would
-  override the choice to keep it ephemeral. (#225)
+  The mark is Pi's own, from pi.dev, rescaled to tty7's 24x24 icon grid — its
+  `prefers-color-scheme` stylesheet dropped, since these avatars are tinted by
+  the app. Restoring a Pi pane also resumes its conversation now: the tty7
+  extension reports Pi's session id, and the resume command is
+  `pi --session <id>` (Pi's `--resume` is a boolean that only opens the
+  interactive picker), with `--session` / `--session-id` / `--fork` /
+  `--resume` / `-r` / `--continue` / `-c` stripped off the replayed launch
+  flags so the restored id wins. A pane launched with `--no-session` is not
+  resumed at all — that pane never wrote a session to disk, and reopening one
+  would override the choice to keep it ephemeral. (#225)
 
 ## [26.7.6] - 2026-07-28