message: make docker image smaller
diff: @@ -29,10 +29,10 @@ RUN npm install -g tslint typescript
  # Install Tex Live
  RUN apt-get update && apt-get -y upgrade
  -RUN apt-get -y install texlive-base texlive-latex-base texlive-math-extra
  -RUN apt-get -y install biber latexmk make
  -RUN apt-get -y install texlive-lang-chinese
  -RUN apt-get -y install texlive-lang-japanese
  +RUN apt-get -y install --no-install-recommends texlive-base texlive-latex-base texlive-math-extra
  +RUN apt-get -y install --no-install-recommends biber latexmk make
  +RUN apt-get -y install --no-install-recommends texlive-lang-chinese
  +RUN apt-get -y install --no-install-recommends texlive-lang-japanese
  # Clean up
  RUN apt-get autoremove -y \
  