Use carpentries/lesson-docker for docker-serve make rule (#461)

Author: zkamvar

.gitignore

@@ -12,4 +12,5 @@ _site
 .bundle/
 .vendor/
 .docker-vendor/
-Gemfile.lock
+Gemfile.lock
+.*history

Makefile

@@ -6,7 +6,6 @@ export SHELL = /bin/bash
 
 # Settings
 MAKEFILES=Makefile $(wildcard *.mk)
-JEKYLL_VERSION=3.8.5
 JEKYLL=bundle install --path .vendor/bundle && bundle update && bundle exec jekyll
 PARSER=bin/markdown_ast.rb
 DST=_site
@@ -54,11 +53,14 @@ site : lesson-md
 
 ## * docker-serve     : use Docker to serve the site
 docker-serve :
-	docker run --rm -it --volume ${PWD}:/srv/jekyll \
-           --volume=${PWD}/.docker-vendor/bundle:/usr/local/bundle \
-           -p 127.0.0.1:4000:4000 \
-           jekyll/jekyll:${JEKYLL_VERSION} \
-           bin/run-make-docker-serve.sh
+	docker pull carpentries/lesson-docker:latest
+	docker run --rm -it \
+		-v $${PWD}:/home/rstudio \
+		-p 4000:4000 \
+		-p 8787:8787 \
+		-e USERID=$$(id -u) \
+		-e GROUPID=$$(id -g) \
+		carpentries/lesson-docker:latest
 
 ## * repo-check       : check repository settings
 repo-check :