add zipping to instructions on issues
If you are have a problem that SCS struggles with you can pass a string to the
`write_data_filename` argument and SCS will dump a file containing the problem
-to disk. You can send this file to us or attach to this bug report for easy
+to disk. Zip the file and send it to us or attach it to this bug report for easy
reproduction of the issue.
A common cause of issues is not linking BLAS/LAPACK libraries correctly. If you
