Fix minor spelling mistake: affect -> effect

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: I7569b19e840fb8d42c66c25fe63cb3e54abd273e

Documentation/config-project-config.txt

diff --git a/Documentation/config-project-config.txt b/Documentation/config-project-config.txt
index 0a6e945e..ea8f6d2 100644
--- a/Documentation/config-project-config.txt
+++ b/Documentation/config-project-config.txt
@@ -532,7 +532,7 @@
 A boolean indicating if reviewers and CCs that do not currently have a Gerrit
 account can be added to a change by providing their email address.
 +
-This setting only takes affect for changes that are readable by anonymous users.
+This setting only takes effect for changes that are readable by anonymous users.
 +
 Default is `INHERIT`, which means that this property is inherited from
 the parent project. If the property is not set in any parent project, the