fix typo.
diff --git a/README.md b/README.md
index e59454b..0591f48 100755
--- a/README.md
+++ b/README.md
@@ -116,7 +116,7 @@
email addresses you wish to send to instead of using project name. You can
provide `receiver` config so it will send all project report to receiver list
instead. And if neither `recveiver` or `project_receiver_domain` are set, the
-project report will try to grap project member list and gather user emails to
+project report will try to grep project member list and gather user emails to
send report to. If no user email can be found from project member, Staffeln
will ignore this report cycle and retry the next cycle. Notice that, to
improve Staffeln performance and to reduce old backup result exist in Staffeln