Add stringly->strongly

As raised in #2260
diff --git a/codespell_lib/data/dictionary_code.txt b/codespell_lib/data/dictionary_code.txt
index c8a831e..0e8741f 100644
--- a/codespell_lib/data/dictionary_code.txt
+++ b/codespell_lib/data/dictionary_code.txt
@@ -52,6 +52,7 @@
 stoll->still
 storaged->storage, stored,
 storaget->storage
+stringly->strongly
 subpatchs->subpatches
 subprocess'->subprocess's
 tarceback->traceback