Add dummy content to appease classifier-reborn

Removes the following noise from test logs:

```
Input: '' is entirely stopwords or words with 2 or fewer characters.
Classifier-Reborn cannot handle this document properly.
```

test/source/_posts/2018-10-12-trailing-dots...markdown

@@ -1,3 +1,5 @@
 ---
 title: Ellipsis Path
 ---
+
+Lorem ipsum dolor sit amet