Auto-publish ePub GitHub action

[PhilStollery]

Hi Merlin,

I was listening to Reconcilably Differentiated and thought, I might know how to do that. For my current work I use GitLab - but CI/CD pipelines seem similar.

This PR adds a GitHub action that on commit builds an epub. You should edit it to only run when a change to wisdom.md is made - and the epub is rubbish and missing content (but I think you know how to use pandoc to fix that).

But this is a bare bones start for you if you want to use it. Just something i could quickly do in 10 mins while I should be doing real work.

[philoserf]

A wee bit more idiomatic:

name: Publish Wisdom Book

run-name: ${{ github.actor }} is publishing a new wisdom book 📚

on:
  push:
    branches: [master]
    paths: [wisdom.md]

jobs:
  publish:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Pandoc
        run: sudo apt-get update && sudo apt-get install -y pandoc

      - name: Convert wisdom.md to EPUB
        run: |
          mkdir -p ebooks
          pandoc wisdom.md -o ebooks/wisdom.epub

      - name: Commit and push generated eBook
        uses: EndBug/add-and-commit@v9
        with:
          add: 'ebooks/wisdom.epub'
          message: 'Automated: Updated wisdom.epub'
          committer_name: GitHub Actions
          committer_email: actions@github.com

[yaleman]

Minor nit, making it YAML compliant 😄

Suggested change

	name: GitHub Book Publisher
	run-name: ${{ github.actor }} is publishing using GitHub Actions 🚀
	on:
	---
	name: GitHub Book Publisher
	run-name: ${{ github.actor }} is publishing using GitHub Actions 🚀
	"on":