putting brouter->router as requested

https://github.com/codespell-project/codespell/pull/2144

codespell_lib/data/dictionary_code.txt

diff --git a/codespell_lib/data/dictionary_code.txt b/codespell_lib/data/dictionary_code.txt
index 008cd7f..32e0ba0 100644
--- a/codespell_lib/data/dictionary_code.txt
+++ b/codespell_lib/data/dictionary_code.txt
@@ -2,6 +2,7 @@
 apoint->appoint
 atend->attend
 atending->attending
+brouter->router
 cas->case, cast,
 clas->class
 cloneable->clonable