README.md in iceland-0.1.5 vs README.md in iceland-0.1.6

@@ -115,10 +115,10 @@
 # Get the current age of the entity. Useful for age restrictions.
 k.age
 # => 86
 ```
 
-#### Casting strings
+##### Casting strings
 
 ```ruby
 # Casting a string to a Kennitala object
 '0101302989'.to_kt
 # => #<Kennitala:0x007fc5893286a0 @value="0101302989">