README.md in trackler-2.2.1.111

- old
+ new

@@ -1,11 +1,11 @@
 # Zipper
 
 Creating a zipper for a binary tree.
 
 [Zippers](https://en.wikipedia.org/wiki/Zipper_%28data_structure%29) are
-a way purely functional of navigating within a data structure and
+a purely functional way of navigating within a data structure and
 manipulating it.  They essentially contain a data structure and a
 pointer into that data structure (called the focus).
 
 For example given a rose tree (where each node contains a value and a
 list of child nodes) a zipper might support these operations:
@@ -66,9 +66,8 @@
 
 For detailed information about the Erlang track, please refer to the
 [help page](http://exercism.io/languages/erlang) on the Exercism site.
 This covers the basic information on setting up the development
 environment expected by the exercises.
-
 
 ## Submitting Incomplete Solutions
 It's possible to submit an incomplete solution so you can see how others have completed the exercise.