Fix envsubst syntax

Author: chadbaldwin

.github/workflows/jekyll-gh-pages.yml

@@ -29,8 +29,7 @@ jobs:
         uses: actions/checkout@v4
       # Generate the config file from template
       - name: Generate config from template
-        run: |
-          envsubst < _config.template.yml > _config.yml
+        run:  envsubst < _config.template.yml > _config.yml
       - name: Setup Pages
         uses: actions/configure-pages@v5
       - name: Build with Jekyll

_config.template.yml

@@ -70,7 +70,7 @@ plugins:
   - jekyll-sitemap
 
 google_analytics:
-  - $[JEKYLL_CONFIG_GOOGLE_ANALYICS]
+  - ${JEKYLL_CONFIG_GOOGLE_ANALYICS}
 
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