landmass caption improvement

Author: trevorcampbell

source/viz.Rmd

@@ -981,7 +981,7 @@ Thus we use the `fill` argument inside `labs` to change that to "Type."
 Finally, we again \index{ggplot!reorder} use the `theme` function 
 to change the font size.
 
-```{r 03-data-islands-bar-4, warning = FALSE, message = FALSE, fig.width=5, fig.height=2.75, fig.align="center", fig.pos = "H", out.extra="", fig.cap = "Bar plot of size for Earth's largest 12 landmasses colored by whether its a continent with clearer axes and labels."}
+```{r 03-data-islands-bar-4, warning = FALSE, message = FALSE, fig.width=5, fig.height=2.75, fig.align="center", fig.pos = "H", out.extra="", fig.cap = "Bar plot of size for Earth's largest 12 landmasses, colored by landmass type, with clearer axes and labels."}
 islands_bar <- ggplot(islands_top12, 
                       aes(x = size,
                           y = fct_reorder(landmass, size, .desc = TRUE),