improve README
diff --git a/README.md b/README.md
index 8d89c6d..8e0dfda 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@
Constraints
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-The grpc package should only depend on standard Go packages and a small number of exceptions. If your contribution introduce a new dependency which is NOT in the [list](http://godoc.org/google.golang.org/grpc?imports), you need a discussion with gRPC-Go authors and consultants.
+The grpc package should only depend on standard Go packages and a small number of exceptions. If your contribution introduces new dependencies which are NOT in the [list](http://godoc.org/google.golang.org/grpc?imports), you need a discussion with gRPC-Go authors and consultants.
Documentation
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