You can simply read source code with Web Browser !!
- Preparing the Docker environment
$ docker build -t reading .
$ docker run -p 8888:80 -itd reading # Access to http://localhost:8888/src/hogehoge/HTML
- Putting source codes that you want to read /usr/local/srcand creating html files withgtagsandhtagscommands
- Access to http://localhost:8888/src/hogehoge/HTMLwith the web browser