update

Performance.md

@@ -1,6 +1,6 @@
 ## Performance tips
 
-If you have a large number of datasets its important to keep the following tips in mind.
+If you have a large number of datasets or snapshots its important to keep the following tips in mind.
 ## Speeding up SSH
 
 You can make your ssh connections persistent and greatly speed up zfs-autobackup:

Problems.md

@@ -29,3 +29,9 @@ Try using the --ignore-transfer-errors option. This will ignore the error. It wi
 > cannot receive incremental stream: kernel modules must be upgraded to receive this stream.
 
 This happens if you forget to use --encrypt, while the target datasets are already encrypted. (Very strange error message indeed)
+
+## Other problems
+
+Feel free to ask questions about zfs-autobackup on our issue tracker at https://github.com/psy0rz/zfs_autobackup/issues
+
+For more general questions go to the excellent subreddit at https://reddit.com/r/zfs