Merge pull request #13 from DanChaltiel/patch-1

Added some use case in the readme

README.Rmd

@@ -53,6 +53,27 @@ remotes::install_github("nanxstats/ggsci")
 [Browse the vignette](https://nanx.me/ggsci/articles/ggsci.html) (or open with
 `vignette("ggsci")` in R) for a quick-start guide.
 
+## Usage
+
+```{r, eval=FALSE}
+library(ggsci)
+#in base plots
+x = factor(mtcars$cyl, labels=pal_jama()(3))
+plot(x = mtcars$mpg, y = mtcars$hp, col = x, pch = 16)
+
+#in ggplot2
+library(ggplot2)
+ggplot(mtcars, aes(x = mpg, y = hp, color = factor(cyl))) +
+    geom_point() +
+    scale_color_nejm()
+
+#in ggplot2, using options
+options(ggplot2.discrete.colour=ggsci::scale_colour_lancet)
+ggplot(mtcars, aes(x = mpg, y = hp, color = factor(cyl))) +
+    geom_point()
+
+```
+
 ## Gallery
 
 ```{r}