Added README which contains link to website and steps for running locally

Author: silvia-odwyer

README.md

@@ -0,0 +1,29 @@
+## CodeSnap Documentation Site
+
+Welcome! This repo contains the documentation site for CodeSnap.
+
+It can be viewed [here](https://codesnap-rs.github.io/docs/).
+
+It is built using Vitepress
+
+## Adding updates
+To get started, just clone the repo:
+```bash
+git clone https://github.com/codesnap-rs/docs
+cd docs
+```
+
+Then install the dependencies:
+```bash
+npm install
+```
+
+To run the dev server:
+```bash
+npm run docs:dev
+```
+
+To build the site:
+```bash
+npm run docs:build
+```