Support for the deploy Github Action

[d3473r]

With this PR you only need to add a Readme or Wiki Entry which could look like this:

1. Generate a set of Ghost Admin API credentials, by configuring a new Custom Integration in Ghost Admin»Integrations.
2. On GitHub, navigate to your theme repository»Settings»Secrets. Create a secret called GHOST_ADMIN_API_URL containing the API URL and another called GHOST_ADMIN_API_KEY containing the Admin API Key. Both must be copied exactly from Ghost Admin»Integrations.
3. Create a file .github/workflows/deploy-theme.yml with the contents:

name: Deploy Theme
on: [push]

jobs:
  deploy:
    runs-on: ubuntu-18.04
    steps:
      - uses: actions/checkout@master
      - uses: actions/setup-node@v1
        with:
          node-version: '10.x'
      - run: npm install
        working-directory: ./src
      - name: Build and deploy the theme
        working-directory: ./src
        run: npm run deploy
        env:
          GHOST_ADMIN_API_URL: ${{ secrets.GHOST_ADMIN_API_URL }}
          GHOST_ADMIN_API_KEY: ${{ secrets.GHOST_ADMIN_API_KEY }}

Manual deployment is also possible.

1. Copy .env.example to .env
2. Enter your GHOST_ADMIN_API_URL and GHOST_ADMIN_API_KEY in the .env file (Not in the .env.example file!!! Because this file is tracked with git and your secrets would be uploaded to your git repo)
3. Run npm run deploy in the src directory
   Now the theme gets build and deployed to your ghost instance.

[eddiesigner]

This is really nice, thanks for your contribution! 😄

I just wrote a couple of comments, after that I will merge it and then add a new entry to the Wiki.

[d3473r]

This is really nice, thanks for your contribution! 😄

I just wrote a couple of comments, after that I will merge it and then add a new entry to the Wiki.

Ahhh sure :D, I overlooked that.