Add quick upload with token example to doc

README.md

@@ -131,6 +131,11 @@ Client configuration and preferences are stored at ~/.plikrc or /etc/plik/plikrc
 ```bash
 curl --form 'file=@/path/to/file' http://127.0.0.1:8080
 ```
+When Authentication is used and NoAnonymousUploads are disabled you can add:
+```bash
+curl --form 'file=@/path/to/file' --header 'X-PlikToken: xxxx-xxx-xxxx-xxxxx-xxxxxxxx' http://127.0.0.1:8080
+```
+
 
 DownloadDomain configuration option must be set for this to properly work.
 
@@ -390,4 +395,4 @@ Arrays are overriden but maps are merged
 
 ```
     PLIKD_DATA_BACKEND_CONFIG='{"Directory":"/var/files"}' ./plikd
-```
+```