Iris plots, code and typo correction on README.md.

R code/plots.R

@@ -0,0 +1,29 @@
+library(tidyverse)
+library(patchwork)
+library(ggforce)
+
+data(iris)
+theme_set(theme_ligth())
+descrp <- "The smallest specie among virginica and versicolor"
+
+
+p <- 
+  ggplot(iris,
+       aes(x = Petal.Width, y = Petal.Length)) +
+  geom_point() +
+  geom_mark_ellipse(show.legend = FALSE,
+                    aes(fill = Species,
+                        filter = Species == "setosa",
+                        label = "Iris setosa",
+                        description = descrp)) +
+  labs(title = "Iris on default Windows PNG engine",
+       x = "Petal width (cm)", y = "Petal length (cm)")
+
+ggsave(filename = "images/iris_default.png", plot = p,
+       height = 5, width = 7, units = "in", dpi = 500)
+
+
+q <- p + labs(title = "Now with Cairo's PNG engine") 
+
+ggsave(filename = "images/iris_cairo.png", plot = q,
+       height = 5, width = 7, units = "in", dpi = 500, type = "cairo")

README.md

@@ -2,6 +2,6 @@
 
 *Why you should prefer Cairo's png engine; visual proof.*
 
-In the past, copying plots from RStudio Plots pane to some document was a pain in the ass, having to deal with horrible graphics quality. I thought that problem was caused by my RStudio version, some issue with my pc or even by Windows. Turns out it's a mix, because **RStudio's default PGN engine for Windows** produces ugly plots.
+In the past, copying plots from RStudio Plots pane to some document was a pain in the ass, having to deal with horrible graphics quality. I thought that problem was caused by my RStudio version, some issue with my pc or even by Windows. Turns out it's a mix, because **RStudio's default PNG engine for Windows** produces ugly plots.
 
 Here's what I mean