Define CI failure emails "body" content in markdown

.github/workflows/push.yaml

@@ -34,9 +34,10 @@ jobs:
           server_port: 465
           username: ${{secrets.CI_MAIL_USERNAME}}
           password: ${{secrets.CI_MAIL_PASSWORD}}
-          to: wikidata-ci-status@wikimedia.de
+          to: leszek.manicki@wikimedia.de
           from: ${{ github.repository }} CI
           subject: CI job failed for ${{ github.repository }}
+          convert_markdown: true
           html_body: |
             CI workflow ${{ github.workflow }} failed!
-            The failed job can be found in <a href="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}">here</a>
+            The failed job can be found in [${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}](here)