Update README.md

Added PHP syntax highlighting.

README.md

@@ -13,17 +13,20 @@ Usage
 
 A factory is used to get generators of varying strength:
 
-    $factory = new RandomLib\Factory;
-    $generator = $factory->getGenerator(new SecurityLib\Strength(SecurityLib\Strength::MEDIUM));
+```php
+$factory = new RandomLib\Factory;
+$generator = $factory->getGenerator(new SecurityLib\Strength(SecurityLib\Strength::MEDIUM));
+```
 
 A factory can be configured with additional mixers and sources but can be
 used out of the box to create both medium and low strength generators.
 
 Convenience methods are provided for creating high, medium, and low
 strength generators. Example:
 
-    $generator = $factory->getMediumStrengthGenerator();
-
+```php
+$generator = $factory->getMediumStrengthGenerator();
+```
 
 #### $factory->getLowStrengthGenerator()
 
@@ -62,16 +65,17 @@ A generator is used to generate random numbers and strings.
 
 Example:
 
-    // Generate a random string that is 32 bytes in length.
-    $bytes = $generator->generate(32);
-
-    // Generate a whole number between 5 and 15.
-    $randomInt = $generator->generateInt(5, 15);
+```php
+// Generate a random string that is 32 bytes in length.
+$bytes = $generator->generate(32);
 
-    // Generate a 32 character string that only contains the letters
-    // 'a', 'b', 'c', 'd', 'e', and 'f'.
-    $randomString = $generator->generateString(32, 'abcdef');
+// Generate a whole number between 5 and 15.
+$randomInt = $generator->generateInt(5, 15);
 
+// Generate a 32 character string that only contains the letters
+// 'a', 'b', 'c', 'd', 'e', and 'f'.
+$randomString = $generator->generateString(32, 'abcdef');
+```
 
 #### $generator->generate($size)
 
@@ -98,18 +102,19 @@ If no character list is specified, the following list of characters is used:
 
 **Examples:**
 
-    // Give the character list 'abcdef':
-    print $generator->generateString(32, 'abcdef')."\n";
-
-    // One would expect to receive output that only contained those
-    // characters:
-    //
-    // adaeabecfbddcdaeedaedfbbcdccccfe
-    // adfbfdbfddadbfcbbefebcacbefafffa
-    // ceeadbcabecbccacdcaabbdccfadbafe
-    // abadcffabdcacdbcbafcaecabafcdbbf
-    // dbdbddacdeaceabfaefcbfafebcacdca
-
+```php
+// Give the character list 'abcdef':
+print $generator->generateString(32, 'abcdef')."\n";
+
+// One would expect to receive output that only contained those
+// characters:
+//
+// adaeabecfbddcdaeedaedfbbcdccccfe
+// adfbfdbfddadbfcbbefebcacbefafffa
+// ceeadbcabecbccacdcaabbdccfadbafe
+// abadcffabdcacdbcbafcaecabafcdbbf
+// dbdbddacdeaceabfaefcbfafebcacdca
+```
 
 License
 -------