service/blog: mention Markdown for content fields

service/blog.md

@@ -94,7 +94,7 @@ Creating new web content for a Lektor site essentially entails editing directori
  6. In the left colum still, navigate to the new directory and open the drop-down menu to the right of the new directory item
  7. Click `New file` to create a new file in that directory
  8. Enter `contents.lr` as the new file name
- 9. In the text editor which appears, draft the new blog post (see below for template)
+ 9. In the text editor which appears, draft the new blog post (Markdown accepted in `summary` and `body` fields, see below for template)
  10. Upload any images or attachments as needed in `assets/static/images/blog`
  11. When finished drafting the new blog post, click the blue `Commit` button, lower left
  12. Select `Commit to main branch` and unselect `Start new merge request`