Mentoring-Program-Guide: make lines break

Add two spaces at the end of the numbered list, so that it does not all come on the same line. Makes it easier to scan, and formats it more closely to what I think the author intended.

Author: tfidfwastaken

Mentoring-Program-Guide.md

@@ -96,11 +96,11 @@ following week.
 In the blog post update and your emails to your mentors and the
 mailing list, it is important that you cover all the following topics:
 
-1) what you have done since last update and how
-2) what is blocking you if anything
-3) what you find difficult to do or understand
-4) what things you think should be easier
-5) what you are planning to work on and how
+1) what you have done since last update and how  
+2) what is blocking you if anything  
+3) what you find difficult to do or understand  
+4) what things you think should be easier  
+5) what you are planning to work on and how  
 
 The reason we ask for 2), 3) and 4) is that often interns or students
 don't know about things, like existing documentation, historical