fix typo in README.md (#231)

Author: txt-file

README.md

@@ -24,8 +24,8 @@ In order to use Browserpass you must also install a [companion native messaging
     -   [Modal HTTP authentication](#modal-http-authentication)
     -   [Password store locations](#password-store-locations)
 -   [Options](#options)
--   -   [A note about autosubmit](#a-note-about-autosubmit)
--   -   [A note about OTP](#a-note-about-otp)
+    -   [A note about autosubmit](#a-note-about-autosubmit)
+    -   [A note about OTP](#a-note-about-otp)
 -   [Usage data](#usage-data)
 -   [Security](#security)
 -   [Privacy](#privacy)