tutorial.txt: fix typos and a'git-whatchanged' example

diff --git a/tree.h b/tree.h
index 1383beb2bf11f66bc34246acc5d843866ae680c9..056bd86fa9e5a62207bd52fbb124f080e8854253 100644 (file)
--- a/tree.h
+++ b/tree.h
@@ -16,6 +16,7 @@ struct tree_entry_list {
                struct tree *tree;
                struct blob *blob;
        } item;
+       struct tree_entry_list *parent;
 };
 
 struct tree {