Steps to use Docker to install Tinkerer and (re)generate blog

[wrr]

Hello,

When trying to update my long inactive blog I run into dependencies problems while installing Tinkerer on Ubuntu 22 (some setuptools version related failures). I have managed to do the update using Ubuntu 20 Docker image. In case it is useful to anyone, here are the steps to do it:

1. Place this Dockerfile in your blog dir.

2. Also in the the blog dir run the following to build the docker image:

   docker build -t tinkerer .

3. And then, to build the blog, run the following:

   docker run -v `pwd`:/blog --rm -it tinkerer tinker -b