Update local dev server guide in README

README.md

@@ -1,3 +1,29 @@
+# Building the Site Locally
+
+## Setup
+
+```r
+# Setup mirrors
+options(repos = c(
+  carpentries = "https://carpentries.r-universe.dev/", 
+  CRAN = "https://cran.rstudio.com/"
+))
+# Setup install from github
+install.packages("devtools")
+library(devtools)
+# Install Uni of Shef Varnish theme
+install_github("RSE-Sheffield/uos-varnish")
+# Install remaining official carpentries packages
+install.packages(c("sandpaper", "tinkr", "pegboard"))
+```
+## Development Server
+
+```r
+sandpaper::serve()
+```
+
+--------------
+
 # The Carpentries Workbench Template Markdown Lesson
 
 This lesson is a template lesson that uses [The Carpentries Workbench][workbench].