add standard reset error

.gx/lastpubver

@@ -1 +1 @@
-3.0.0: QmY9JXR3FupnYAYJWK9aMr9bCpqWKcToQ1tz8DVGTrHpHw
+3.0.1: QmXNwiTrMHwLMUarh9NYH1LBNXCH6TbXjc2FmEDX7M9Tu4

muxer.go

@@ -1,11 +1,15 @@
 package streammux
 
 import (
+	"errors"
 	"io"
 	"net"
 	"time"
 )
 
+// ErrReset is returned when reading or writing on a reset stream.
+var ErrReset = errors.New("stream reset")
+
 // Stream is a bidirectional io pipe within a connection.
 type Stream interface {
 	io.Reader

package.json

@@ -10,6 +10,6 @@
   "language": "go",
   "license": "",
   "name": "go-stream-muxer",
-  "version": "3.0.0"
+  "version": "3.0.1"
 }