Add instructions on how to deploy to Github pages locally

.gitignore

@@ -8,6 +8,7 @@ _site
 _bin
 setup.sh
 .project
+.env
 
 # Vim temp files
 *.swp

README.md

@@ -32,9 +32,20 @@ These instructions will get you a copy of the Quarkus.io website up and running
 
 > If you encounter any unexpected errors during the above, please refer to the [troubleshooting](https://jekyllrb.com/docs/troubleshooting/#configuration-problems) page or the [requirements](https://jekyllrb.com/docs/installation/#requirements) page, as you might be missing development headers or other prerequisites.
 
-
 **For more regarding the use of Jekyll, please refer to the [Jekyll Step by Step Tutorial](https://jekyllrb.com/docs/step-by-step/01-setup/).**
 
+### Deploying to Github Pages
+The website deployment is automatically performed by GitHub Actions (when commits are pushed to the `develop` branch). 
+If for some reason you need to deploy from your local machine, follow these instructions: 
+
+1. Install the [act](https://github.com/nektos/act#installation) executable to run GitHub Actions locally
+2. Create an `.env` file in your cloned repository with the following contents (Where *<GITHUB_TOKEN>* needs to be replaced with a token that allows you to push to the https://github.com/quarkusio/quarkusio.github.io repository): 
+
+        JEKYLL_PAT=<GITHUB_TOKEN>
+
+3. Run `act`
+
+
 ## Writing a blog
 
 To write a blog: