Grammar

README.md

diff --git a/README.md b/README.md
index d3a15bf..234047c 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@
 -----------------------------------
 You can download source and binaries from our [download page](https://commons.apache.org/proper/commons-testing/download_testing.cgi).
 
-Alternatively you can pull it from the central Maven repositories:
+Alternatively, you can pull it from the central Maven repositories:
 
 ```xml
 <dependency>