diff --git a/README.md b/README.md
index e8e5480..d8495c7 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 ## Go by Example
 
 Content and build toolchain for [Go by Example](https://gobyexample.com),
-site that teaches Go via annotated example programs.
+a site that teaches Go via annotated example programs.
 
 
 ### Overview