Fix typos: dictio{ nn -> n }ar{y,ies}

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>
diff --git a/optim/hash_dict.txt b/optim/hash_dict.txt
index f655deb..a447b7e 100644
--- a/optim/hash_dict.txt
+++ b/optim/hash_dict.txt
@@ -1,4 +1,4 @@
-Reuses a dictionnary for the hash table to reduce the string compare
+Reuses a dictionary for the hash table to reduce the string compare
 costs. Not worth it unless validating big DTDs
 
 		without		with