Detect file changes and convert the file from yaml to html continuously using dockerfile

Question

My dockerfile -

FROM node:alpine

RUN npm install -g redoc-cli

WORKDIR /data
EXPOSE 8080

ENTRYPOINT ["redoc-cli"]
CMD []

Build and run command-

docker build -t anyname .
docker run -v $PWD:/data -t anyname bundle test.yaml

Using above command, I can easily convert the yaml file to html file. But I want to write a dockerfile in such a way that if i change anything in the yaml file then it will convert again to html. The process will be continuous.

Please suggest me. I am new in docker.