Tests: fix typo.
diff --git a/README b/README
index ec1ced8..78dba3a 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-Test suit for nginx.
+Test suite for nginx.
 
 Use prove to run tests as one usually do for perl tests.  Individual tests
 may be run as well.