Additions to submit_rjournal()

[dicook]

• [x] Add question on alt text for figures and tables
• [x] Add question about spelling checked
• [ ] Add question about rendering, maybe even render it (may be a problem if article is only latex)

[dicook]

• [x] Check the orcid id's. At least the person linked to the number can be reported to the authors to check.

[dicook]

• [x] Check zip file is not more than 10Mb