README.md in trackler-2.2.1.100

- old
+ new

@@ -7,11 +7,11 @@
 alphabet is backwards. The first letter is replaced with the last
 letter, the second with the second-last, and so on.
 
 An Atbash cipher for the Latin alphabet would be as follows:
 
-```plain
+```text
 Plain:  abcdefghijklmnopqrstuvwxyz
 Cipher: zyxwvutsrqponmlkjihgfedcba
 ```
 
 It is a very weak cipher because it only has one possible key, and it is
@@ -21,10 +21,11 @@
 Ciphertext is written out in groups of fixed length, the traditional group size
 being 5 letters, and punctuation is excluded. This is to make it harder to guess
 things based on word boundaries.
 
 ## Examples
+
 - Encoding `test` gives `gvhg`
 - Decoding `gvhg` gives `test`
 - Decoding `gsvjf rxpyi ldmul cqfnk hlevi gsvoz abwlt` gives `thequickbrownfoxjumpsoverthelazydog`
 
 ## Deprecation of String.lowercase
@@ -42,10 +43,9 @@
 String.lowercase_ascii "Hello, World!"
 ```
 
 See [String documentation](http://caml.inria.fr/pub/docs/manual-ocaml/libref/String.html) 
 for more useful functions.
-
 
 
 ## Getting Started
 For installation and learning resources, refer to the
 [exercism help page](http://exercism.io/languages/ocaml).