fix typos

pre_commit_hooks/check_added_large_files.py

diff --git a/pre_commit_hooks/check_added_large_files.py b/pre_commit_hooks/check_added_large_files.py
index cb646d7..e60f99c 100644
--- a/pre_commit_hooks/check_added_large_files.py
+++ b/pre_commit_hooks/check_added_large_files.py
@@ -55,7 +55,7 @@
     )
     parser.add_argument(
         '--maxkb', type=int, default=500,
-        help='Maxmimum allowable KB for added files',
+        help='Maximum allowable KB for added files',
     )
     args = parser.parse_args(argv)