utf8s.RuneScanner docs

README.md

@@ -43,3 +43,19 @@ runeReader := utf8s.NewRuneReader(reader)
 
 r, n, err := runeReader.ReadRune()
 ```
+
+```go
+var reader io.Reader
+
+// ...
+
+runeScanner := utf8s.NewRuneScanner(reader)
+
+// ...
+
+r, n, err := runeScanner.ReadRune()
+
+// ...
+
+err = runeScanner.UnreadRune()
+```

doc.go

@@ -37,6 +37,23 @@ Example
 	r, n, err := runeReader.ReadRune()
 
 
+Example
+
+	var reader io.Reader
+	
+	// ...
+	
+	runeScanner := utf8s.NewRuneScanner(reader)
+	
+	// ...
+	
+	r, n, err := runeScanner.ReadRune()
+	
+	// ...
+	
+	err = runeScanner.UnreadRune()
+
+
 Example
 
 	var r rune