Chapters with eval=FALSE since they require API tokens that are not set up

[jtr13]

The chapters in this thread require API tokens to build and will not work unless we add the tokens to GitHub secrets and access them in GitHub actions. For now code chunks are set to eval=FALSE with:

```{r, include=FALSE}
knitr::opts_chunk$set(eval=FALSE)
```

@rjr2168 developed a workflow for https://jtr13.github.io/cc21fall2/video-introduction-to-maps-with-ggmap.html using this method which we can use as a model if other authors are interested in going this route.

If you add knitr::opts_chunk$set(eval=FALSE) to other chapters for the same reason, please add a reference to those chapters in this thread.

[jtr13]

Rendered chapter: https://jtr13.github.io/cc21fall1/from-neo4j-to-rstudio.html
Pull request: #22