Fixed presentation in REDME.md

Author: Michaël Catanzariti

README.md

@@ -10,8 +10,8 @@ Dahomey.ExpressionEvaluator code does not trigger any AOT complilation. It means
 ## Building
 Supports Visual Studio 2017 only
 
-# Examples
-## Parse a numeric expression
+## Examples
+### Parse a numeric expression
 ```csharp
 ExpressionParser parser = new ExpressionParser();
 parser.RegisterVariable<int>("a");
@@ -26,7 +26,7 @@ The result will be:
 3
 ```
 
-## Parse a numeric expression with member access
+### Parse a numeric expression with member access
 ```csharp
 class A
 {
@@ -51,7 +51,7 @@ The result will be:
 13
 ```
 
-## Parse a numeric expression with array or list access
+### Parse a numeric expression with array or list access
 ```csharp
 ExpressionParser parser = new ExpressionParser();
 parser.RegisterVariable<List<int>>("a");
@@ -66,7 +66,7 @@ The result will be:
 3
 ```
 
-## Parse a numeric expression with function access
+### Parse a numeric expression with function access
 ```csharp
 Func<double, double> func = n => Math.Cos(n);
 ExpressionParser parser = new ExpressionParser();