git-rebase.txt: add another hook to the hooks section, and explain more

[git] / t / t4135 / git-with tab.diff

diff --git "a/post\timage.txt" "b/post\timage.txt"
new file mode 100644
index 0000000..eff0c54
--- /dev/null
+++ "b/post\timage.txt"
@@ -0,0 +1 @@
+postimage