Merge pull request #37 from fatedier/master

fix typo
diff --git a/encode.go b/encode.go
index 8749689..8d393e9 100644
--- a/encode.go
+++ b/encode.go
@@ -138,7 +138,7 @@
 	}
 }
 
-// Writer is an io.Writer than can write Snappy-compressed bytes.
+// Writer is an io.Writer that can write Snappy-compressed bytes.
 type Writer struct {
 	w   io.Writer
 	err error