Update README.md

README.md

@@ -4,7 +4,7 @@
 
 * The range of number is given in a text file (the first two lines represent the starting and the ending numbers of the range respectively)
 
-#### Running the application
+### Running the application
 
 In your terminal do the following
 
@@ -14,15 +14,15 @@ $ cd palindrome numbers
 $ ruby counter.rb
 ```
 
-#### Test
+### Test
 
 In order to run the Rspec tests (there are 5 tests that test the same range numbers that are in the test files and one other), do the following
 
 ```bash
 $ rspec
 ```
 
-## Approach
+### Approach
 
 I created an external class that does the counting in a range. I have two methods for checking if a number (once converted into a string) is a palindrome:
 * the first one uses the reverse ruby in-built method