add solution to 5.2

_episodes/05-style.md

@@ -460,6 +460,10 @@ PEP 8 limits itself to the two most important points:
 > - Is it also the block you find easiest to read?
 > - In each block, mark the lines/places where you consider the style to be _problematic_ (that is, where the [lack of] style actively makes the code difficult to read/inaccessible in some other way).
 > - Pair up and compare your notes with a partner's. Did you both identify the same problems?
+>
+> > ## Solution
+> > Block B conforms to PEP 8.
+> {: .solution }
 {: .challenge }
 
 ## Code Checkers