Add installation instructions

Author: MarkKremer

.github/workflows/github-pages.yml

@@ -1,6 +1,3 @@
-# This workflow will build a golang project
-# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
-
 name: GitHub Pages
 
 on:
@@ -18,12 +15,13 @@ jobs:
     env:
       DOCS_DIR: 'docs/'
       DEST_DIR: '_site/'
+      BRANCH: 'main'
     steps:
       - uses: actions/configure-pages@v5
         id: configure-pages
       - uses: actions/checkout@v3
         with:
-          ref: 'main'
+          ref: ${{ env.BRANCH }}
           fetch-depth: 0 # checkout a non-shallow copy so the generator can generate docs for all major versions
       - uses: ./
         with:

README.md

@@ -1,3 +1,3 @@
 # gopxl documentation site generator
 
-[Go to the documentation](https://markkremer.github.io/gopxl-docs-generator/main/01.%20Getting%20Started/01.%20Installation.html)
+[Go to the documentation](https://gopxl.github.io/docs/main/01.%20Getting%20Started/01.%20Installation.html)

docs/01. Getting Started/01. Installation.md

@@ -1,3 +1,55 @@
 # Installation
 
-todo
+## Enable GitHub Pages
+
+In your repository on GitHub, go to Settings → Pages.
+Under Build and deployment → Source, change the option to `GitHub Actions`.
+
+## Create a GitHub Workflow
+
+In your project, create a GitHub Workflow file:
+```yaml
+# .github/workflows/github-pages.yml
+name: GitHub Pages
+
+on:
+  push:
+    branches: ['main']
+    tags: ['*']
+
+jobs:
+
+  upload-docs:
+    runs-on: ubuntu-latest
+    permissions:
+      pages: write
+      id-token: write
+    env:
+      DOCS_DIR: 'docs/'
+      DEST_DIR: '_site/'
+      BRANCH: 'main'
+    steps:
+      - uses: actions/configure-pages@v5
+        id: configure-pages
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ env.BRANCH }}
+          fetch-depth: 0 # checkout a non-shallow copy so the generator can generate docs for all major versions
+      - uses: gopxl/docs@main
+        with:
+          deploy-url: ${{ steps.configure-pages.outputs.base_url }}
+          docs-directory: ${{ env.DOCS_DIR }}
+          destination-directory: ${{ env.DEST_DIR }}
+      - uses: actions/upload-pages-artifact@v3
+        with:
+          path: ${{ env.DEST_DIR }}
+      - uses: actions/deploy-pages@v4
+```
+
+The `DOCS_DIR` environment variable can be changed to point
+to the directory containing the MarkDown files.
+
+## View your website
+
+If your GitHub repository is hosted at `https://github.com/owner/project`,
+your GitHub Pages site will be available at `https://owner.github.io/project`.