Update README.md

README.md

@@ -13,23 +13,23 @@ Then you might like Formula1 ! ;-)
 
 **Simple usage no variables**
 
-> $f1 = new Formula1('-45+(41*2)-(6/(3+1))');
-
-> echo($f1->compute()); // 35.5
-
+```PHP
+$f1 = new Formula1('-45+(41*2)-(6/(3+1))');
+echo($f1->compute()); // 35.5
+```
 
 **Simple usage with variables**
 
-> $f1 = new Formula1('-45+(fourty_one*2)-(6/(three+1))' , ['fourty_one'=>41, 'three'=>3]);
-
-> echo($f1->compute());
-
+```PHP
+$f1 = new Formula1('-45+(fourty_one*2)-(6/(three+1))' , ['fourty_one'=>41, 'three'=>3]);
+echo($f1->compute());
+```
 
 **Funky usage with variables that include formulas themselves (and recusrively)**
 
-> $f1 = new Formula1('-45+(fourty_one*2)-(6/(three+1))' , ['fourty_one'=>'82/2', 'three'=>'12/four', 'four'=>4]);
-
-> echo($f1->compute());
-
+```PHP
+$f1 = new Formula1('-45+(fourty_one*2)-(6/(three+1))' , ['fourty_one'=>'82/2', 'three'=>'12/four', 'four'=>4]);
+echo($f1->compute());
+```