singularity image mounting output directory to /tmp

[nfbourg]

Hello,

The output directory is mounted to /tmp and so the results from alphafold are not saved locally.

Reading through the script I made a change in line 237, where I believe
binds.append(f'{output_dir}:{output_target_path}')
should be:
binds.append(f'{FLAGS.output_dir}:{output_target_path}')
for what I implied to be the intended function.

Otherwise I don't see FLAGS.output_dir utilized anywhere else script.

-Nate