feat: add docker container (#9)

Author: jwsung91

Dockerfile

@@ -0,0 +1,15 @@
+FROM ruby:3.1.1
+
+RUN apt-get update -qq && apt-get install -y build-essential nodejs
+
+WORKDIR /workspace
+COPY . /workspace
+
+RUN gem install bundler jekyll
+
+RUN bundle install
+
+EXPOSE 4000
+
+CMD ["bundle", "exec", "jekyll", "serve", "--host", "0.0.0.0"]
+

README.md

@@ -1,3 +1,19 @@
 # jwsung91.github.io
 
-[jwsung91.github.io](https://jwsung91.github.io)
+[jwsung91.github.io](https://jwsung91.github.io)
+
+This is a technical blog focused on software engineering topics. The blog is built using the [Chirpy](https://github.com/cotes2020/jekyll-theme-chirpy) theme for [Jekyll](https://jekyllrb.com).
+
+## Using Docker container
+
+### Build 
+
+```zsh
+docker build --no-cache -t my_space .
+```
+
+### Run
+
+```zsh
+docker run -it --rm -p 4000:4000 -v $(pwd):/workspace my_space
+```