contrib/git-jump: fix typo in README

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/contrib/git-jump/README b/contrib/git-jump/README
index 3e0b65b..225e3f0 100644
--- a/contrib/git-jump/README
+++ b/contrib/git-jump/README
@@ -85,7 +85,7 @@
 Limitations
 -----------
 
-This scripts was written and tested with vim. Given that the quickfix
+This script was written and tested with vim. Given that the quickfix
 format is the same as what gcc produces, I expect emacs users have a
 similar feature for iterating through the list, but I know nothing about
 how to activate it.