doc: adding gitman.info and *.texi to .gitignore

Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/.gitignore b/Documentation/.gitignore
index 2f938f4..d8edd90 100644
--- a/Documentation/.gitignore
+++ b/Documentation/.gitignore
@@ -2,7 +2,9 @@
 *.html
 *.[1-8]
 *.made
+*.texi
 git.info
+gitman.info
 howto-index.txt
 doc.dep
 cmds-*.txt