Fix FROM param docs

[VincentGuyader]

Summary

• update description for FROM parameter
• refresh Rd documentation manually so default matches

Testing

• Rscript -e 'print("test")' (fails: command not found)

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https://chatgpt.com/codex/tasks/task_e_6842e188c30c8328bf6539851e5dfc5a

[Copilot]

Pull Request Overview

This PR updates the documentation for the FROM parameter in both the Rd file and inline R comments to reflect a new default Docker image.

• Updated the Rd file parameter description from "rocker/r-base" to "rocker/geospatial".
• Updated the inline R documentation to match the new default.
• Refreshed the Rd documentation manually.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
man/shiny2docker.Rd	Updated the FROM parameter documentation to show the new default.
R/shiny2docker.R	Updated the inline parameter comment for FROM accordingly.

Comments suppressed due to low confidence (2)

man/shiny2docker.Rd:31

• Ensure that the updated default value in the Rd documentation accurately reflects the behavior in the Dockerfile generation logic.

\item{FROM}{Docker image to start FROM. Default is rocker/geospatial}

R/shiny2docker.R:10

• Verify that the inline documentation for the FROM parameter correctly communicates the new default and that it is consistent with the actual behavior in the Dockerfile construction.

#' @param FROM Docker image to start FROM. Default is rocker/geospatial