update comment on paranoid_file_management option

gradint-build/advanced.txt

@@ -1000,7 +1000,8 @@ compress_progress_file = 0
 # kind of mount then leave it at 0 (it just takes more time).
 # (Note: curlftpfs reliability is worse if you use transform_symlinks
 # and point gradint to 2 symlinks in the remote filesystem,
-# e.g. samples and synth-cache: curlftpfs may confuse them!)
+# e.g. samples and synth-cache: curlftpfs may confuse them!
+# sshfs better, but best setup is sync before/after running)
 
 paranoid_file_management = 0