Add screenshots

README.Rmd

 ```{r setup}`r ""`
 options(htmltools.dir.version = FALSE)
 library(xaringanthemer)
-mono_dark(
-  base_color = "#b6174b",
+mono_light(
+  base_color = "#1c5253",
   header_font_google = google_font("Josefin Sans"),
   text_font_google = google_font("Montserrat", "300", "300i"),
   code_font_google = google_font("Droid Mono")
 ```
 ````
 
+![](docs/example_mono_light_1c5253.png)
+
 ## Monotone Themes
 
 Use these functions to automatically create a consistent color palette for your slides, based around a single color.

README.md

 ```{r setup}
 options(htmltools.dir.version = FALSE)
 library(xaringanthemer)
-mono_dark(
-  base_color = "#b6174b",
+mono_light(
+  base_color = "#1c5253",
   header_font_google = google_font("Josefin Sans"),
   text_font_google = google_font("Montserrat", "300", "300i"),
   code_font_google = google_font("Droid Mono")
 ```
 ````
 
+![](docs/example_mono_light_1c5253.png)
+
 ## Monotone Themes
 
 Use these functions to automatically create a consistent color palette