Merge branch 'use-netlify' into 'master'

Use netlify for website generation

Closes #20

See merge request !9

.gitlab-ci.yml

-image: rocker/tidyverse
+stages:
+  - build
+  - deploy
 
-pages:
-    stage: deploy
+build:
+    stage: build
     script:
-      - R -e "remotes::install_deps(dependencies = T)"
+      - R -e "remotes::install_deps(dependencies = TRUE)"
       - R -e "tinytex::install_tinytex()"
-      - Rscript _build.R
+      - R -e "bookdown::render_book('index.Rmd', 'bookdown::gitbook')"
     artifacts:
         paths:
             - public
+
+# - R -e "bookdown::render_book('index.Rmd', 'bookdown::pdf_book')"
+# To produce a code coverage report as a GitLab page see
+# https://about.gitlab.com/2016/11/03/publish-code-coverage-report-with-gitlab-pages/
+
+deploy:
+    image: node:latest
+    stage: deploy
+    before_script:
+        - npm i -g netlify-cli
+    script:
+        - netlify deploy --site $NETLIFY_SITE_ID --auth $NETLIFY_AUTH_TOKEN --prod
     only:
         - master
+    dependencies:
+        - build

netlify.toml

+[build]
+    publish = "public"