add alternative sign-off methods

Author: paularuiz22

DCO

@@ -40,4 +40,11 @@ using your real name (sorry, no pseudonyms or anonymous contributions.)
 The DCO text can either be manually added to your commit body, or you can add either **-s** or **--signoff** to your 
 usual git commit commands. If you forget to add the sign-off you can also amend a previous commit with the sign-off by 
 running **git commit --amend -s**. If you've pushed your changes to Github already you'll need to force push your branch
- after this with **git push -f**.
+after this with **git push -f**.
+
+#### Alternative Sign-Off Methods in rare cases
+ 
+ 
+If it is really no option for you to disclose your real name and email address, there might be a chance that you can get
+your contribution accepted. In this case please contact the maintainers directly and verify the adherence to the DCO of 
+the contribution manually. This might include quite some legal overhead for both parties.