Build Site with GitHub Actions (#14)

## Overview

This PR updates the project environment by cleaning up the `renv` setup
and upgrading to R v4.5.1. It also introduces a GitHub Action to
automatically build and deploy the site whenever changes are pushed to
the `main` branch. Addresses #13 .

## Details

- Removed the docs folder and added it to `.gitignore` to keep the
repository root cleaner.
  - Local site previews can still be run with `quarto preview`.
- GitHub Actions now build the site using R v4.5.1, consistent with the
version recorded in the `renv` lockfile.

## Developer Notes

- When adding new libraries, run `renv::snapshot()` and commit the
updated lockfile.

## Breaking Changes

- Repository settings must be updated so GitHub Pages deploys from the
`gh-pages` branch.
- The `gh-pages` branch may need to be initialized before deployment.

Author: the-mayer

.github/workflows/quarto_publish.yml

@@ -0,0 +1,36 @@
+on:
+  workflow_dispatch:
+  push:
+    branches: main
+
+name: quarto_publish.yml
+
+jobs:
+  build-deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Quarto
+        uses: quarto-dev/quarto-actions/setup@v2
+
+      - name: Install R
+        uses: r-lib/actions/setup-r@v2
+        with:
+          r-version: '4.5.1'
+
+      - name: Install R Dependencies
+        uses: r-lib/actions/setup-renv@v2
+        with:
+          cache-version: 1
+
+      - name: Render and Publish
+        uses: quarto-dev/quarto-actions/publish@v2
+        with:
+          target: gh-pages
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          

.gitignore

@@ -5,3 +5,6 @@
 Icon?
 .DS_Store
 /.quarto/
+/_site/
+/_book/
+docs

_quarto.yml

@@ -1,7 +1,6 @@
 project:
   type: book
-  #type: website
-  output-dir: docs/
+
 
 book:
   title: "JRaviLab docs"