put the input table under the required arguments for spotter

[wangliang1989]

Description of proposed changes

Fixes #

Reminders

• Make sure that your code follows our style. Use the other functions/files as a basis.
• Add tests for new features or tests that would have caught the bug that you're fixing.
• Describe changes to function behavior and arguments in a comment below the function declaration.
• If adding new functionality, add a detailed description to the documentation and/or an example.

[PaulWessel]

Actually, for grdpmodeler, the input grid is optional as you can define a region via -R -I [-r]. So it should remain in the Optional Argument section. Your other two modules are correct, so please just rever the grdpmodeler changes.

[wangliang1989]

Actually, for grdpmodeler, the input grid is optional as you can define a region via -R -I [-r]. So it should remain in the Optional Argument section. Your other two modules are correct, so please just rever the grdpmodeler changes.

revered.

I think the branch is needed to rebased before merging which can be done by Github

[wangliang1989]

Why not merge?

[PaulWessel]

Well, our CI fails because the gmtserver is still down, but I will merge it anyway since just docs.

[PaulWessel]

Thanks!

[wangliang1989]

Thanks!

My another PR need your comment.

I am happy to help