Manual fixes for CRAN

[dan-knight]

Description

Fixes two NOTEs in R CMD check.

Rd file 'create.scatterplot.Rd':
  \examples lines wider than 100 characters:
         # "s" connects points with the vertical segment first. "S" connects points with the horizontal segment first.

These lines will be truncated in the PDF manual.

* checking Rd cross-references ... NOTE
Found the following Rd file(s) with Rd \link{} targets missing package
anchors:
  legend.grob.Rd: draw.key
Please provide package anchors for all Rd \link{} targets not in the

Checklist

• [X] This PR does NOT contain PHI or germline genetic data. A repo may need to be deleted if such data is uploaded. Disclosing PHI is a major problem.

• [X] This PR does NOT contain molecular files, compressed files, output files such as images (e.g. .png, .jpeg), .pdf, .RData, .xlsx, .doc, .ppt, or other non-plain-text files. To automatically exclude such files using a .gitignore file, see here for example.

• [X] I have read the code review guidelines and the code review best practice on GitHub check-list.

• [X] I have set up or verified the main branch protection rule following the github standards before opening this pull request.

• [X] The name of the branch is meaningful and well formatted following the standards, using [AD_username (or 5 letters of AD if AD is too long)]-[brief_description_of_branch].

• [X] I have added the major changes included in this pull request to the NEWS under the next release version or unreleased, and updated the date. I have also updated the version number in DESCRIPTION according to semantic versioning rules.

• [X] Both R CMD build and R CMD check run successfully.

[whelena]

Should be good once it passes R-CMD-check

[dan-knight]

There are a lot of warnings in the R CMD CHECK

These are both false positives and unrelated to the changes in this PR.