Fix a typo in dictobject.c documentation (#117515)

Objects/dictobject.c

diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index c3516df..4e69641 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -1876,7 +1876,7 @@ actually be smaller than the old one.
 If a table is split (its keys and hashes are shared, its values are not),
 then the values are temporarily copied into the table, it is resized as
 a combined table, then the me_value slots in the old table are NULLed out.
-After resizing a table is always combined.
+After resizing, a table is always combined.
 
 This function supports:
  - Unicode split -> Unicode combined or Generic