Add summaries to the atom feeds

.gitea/workflows/update.yaml

@@ -1,15 +0,0 @@
-name: Build on push
-on:
-  schedule:
-    - cron: '@weekly'
-
-jobs:
-  build-webhook:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Call the webhook
-        uses: distributhor/workflow-webhook@v3
-        with:
-          webhook_url: ${{ secrets.WEBHOOK_URL }}
-          webhook_secret: ${{ secrets.WEBHOOK_KEY }}
-          verbose: true

src/feeds/atom.njk

@@ -24,6 +24,7 @@
     <updated>{{ post.date | dateToRfc3339 }}</updated>
     <id>{{ absolutePostUrl }}</id>
     <content xml:lang="{{ metadata.site.language }}" type="html">{{ post.templateContent | htmlToAbsoluteUrls(absolutePostUrl) }}</content>
+    <summary>{{ post.content | excerpt }}</summary>
   </entry>
   {%- endfor %}
 </feed>