feat: revise API, add README.md, LICENSE (#2)

Co-authored-by: Dmitry Fedotov <dmitry@uint32.ru>
Co-committed-by: Dmitry Fedotov <dmitry@uint32.ru>

output_stdout.go

@@ -1,7 +1,6 @@
 package script
 
 import (
-	"context"
 	"os"
 	"strings"
 )
@@ -12,7 +11,7 @@ func NewStdoutWriter() *StdoutWriter {
 	return new(StdoutWriter)
 }
 
-func (s *StdoutWriter) Write(_ context.Context, in []string) error {
+func (s *StdoutWriter) Write(in []string) error {
 	_, err := os.Stdout.WriteString(strings.Join(in, ",") + "\n")
 	return err
 }