Fix linters

telegram/direct.go

@@ -50,6 +50,8 @@ func (t *directTelegram) Init(conn io.ReadWriteCloser) (io.ReadWriteCloser, erro
 	return wrappers.NewStreamCipherRWC(conn, obfs2.Encryptor, obfs2.Decryptor), nil
 }
 
+// NewDirectTelegram returns Telegram instance which connects directly
+// to Telegram bypassing middleproxies.
 func NewDirectTelegram(conf *config.Config) Telegram {
 	return &directTelegram{baseTelegram{
 		dialer:      newDialer(conf),

telegram/telegram.go

@@ -7,6 +7,9 @@ import (
 	"github.com/juju/errors"
 )
 
+// Telegram defines an interface to connect to Telegram. This
+// encapsulates logic of working with middleproxies or direct
+// connections.
 type Telegram interface {
 	Dial(int16) (io.ReadWriteCloser, error)
 	Init(io.ReadWriteCloser) (io.ReadWriteCloser, error)