Add focu->focus

codespell_lib/data/dictionary.txt

diff --git a/codespell_lib/data/dictionary.txt b/codespell_lib/data/dictionary.txt
index 05630f4..bc22a41 100644
--- a/codespell_lib/data/dictionary.txt
+++ b/codespell_lib/data/dictionary.txt
@@ -13249,6 +13249,7 @@
 flusing->flushing
 flyes->flies, flyers,
 fo->of, for,
+focu->focus
 focued->focused
 focument->document
 focuse->focus