Just say "January" explicitly.

Author: janpgit

docs/index.html

@@ -125,7 +125,7 @@ <h2><a name="practices">Practices and class assignments</a></h2>
 <td>
 <font size="+1" color="black"><b>
 The first phase of the shell assignment must be finished and handed to us before
-the end of the Winter semester, ie. Jan 13, 2019.  All examples shown in the
+the end of the Winter semester, ie. January 13, 2019.  All examples shown in the
 assignment above must work as expected.
 
 <p>The second phase must be finished and handed over to us before the end of the