Chapter 4 images

[pauldpickell]

Images in chapter 4 seem to have proper in-line references, but the markdown instance of the image should be replaced by the knitr R code chunk. For example, replace:

![Figure 4.1 Envisioning university and government data networks. Data within each network is concentrated within data repositories, yet considerable data remains 'hidden' among individual researchers and silos of the Ministry, but can potentially be accessed by finding the right connections.](images/04-data-network-model.png){.center}

With this:

fig_cap <- paste0("Envisioning university and government data networks. Data within each network is concentrated within data repositories, yet considerable data remains 'hidden' among individual researchers and silos of the Ministry, but can potentially be accessed by finding the right connections.")
knitr::include_graphics(here::here("images", "04-data-network-model.png"))

Also, all of these images need attribution and licensing information added to the caption. @nickmmurphy and @ect123, this information may only be available on the TASL spreadsheet.

[nickmmurphy]

Currently working on both issues for chapter 4. The images have no sources and were not in the spreadsheet, so I reached out to Ira to see if there's a list somewhere of where they were obtained.

[pauldpickell]

I am committing changes to a new branch to deal with this. I am also editing and contributing new material to this chapter, so I would wait to start on the citation work. I also reached out to Ira about the image sourcing.