Franklin instructions

Author: fonsp

.gitattributes

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 page/* linguist-vendored
+* text=auto

website/HOW TO RUN LOCALLY.md

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+# 18S191 course website
+
+The website was written in Franklin.jl - a static site generator with Julia as templating language.
+
+Whenever you push to this folder of the repository, the website will automatically rebuild and update. To test your changes locally before pushing, follow these steps:
+
+1. In a terminal, navigate to this folder using `cd`.
+2. Run Julia with this folder as the active project, and `instantiate`:
+```
+$ julia --project
+julia> ]
+(website) pkg> instantiate
+```
+3. Import & run our buddy Franklin:
+```
+julia> using Franklin
+# ignore some warnings
+julia> serve()
+```
+
+Franklin will now launch a _live dev server_: whenever you change a file, your browser tab will automatically refresh.