nits

Author: oakbani

Diff for: README.md

@@ -16,7 +16,7 @@ Optimizely Rollouts is free feature flags for development teams. Easily roll out
 
 The Optimizely PHP SDK can be installed through [Composer](https://getcomposer.org/). Please use the following command:
 
-```
+```sh
 php composer.phar require optimizely/optimizely-sdk
 ```
 
@@ -28,31 +28,32 @@ To access the Feature Management configuration in the Optimizely dashboard, plea
 #### Initialization
 Create the Optimizely client, for example:
 
-```
+```php
 $optimizely = new Optimizely(<<DATAFILE>>);
 ```
 
-Or you may also use OptimizelyFactory method to create an optimizely client using your SDK key and an optional fallback datafile. Using this method internally creates an HTTPProjectConfigManager. See HTTPProjectConfigManager for further detail.
+Or you may also use OptimizelyFactory method to create an optimizely client using your SDK key and an optional fallback datafile. Using this method internally creates an HTTPProjectConfigManager. See [HTTPProjectConfigManager](#http_config_manager) for further detail.
 
-```
+```php
 $optimizelyClient = OptimizelyFactory::createDefaultInstance("your-sdk-key", <<DATAFILE>>);
 ```
-// access your HTTPProjectConfigManager
-```
+To access your HTTPProjectConfigManager
+
+```php
 $configManager = $optimizelyClient->configManager;
 ```
 
-Or you can also provide an implementation of the `ProjectConfigManagerInterface` in the constructor:
+Or you can also provide an implementation of the [`ProjectConfigManagerInterface`](https://github.com/optimizely/php-sdk/blob/master/src/Optimizely/ProjectConfigManager/ProjectConfigManagerInterface.php) in the constructor:
 
-```
+```php
 $configManager = new HTTPProjectConfigManager(<<SDK_KEY>>);
 $optimizely = new Optimizely(<<DATAFILE>>, null, null, null, false, null, $configManager);
 ```
 
 #### ProjectConfigManagerInterface
 [`ProjectConfigManagerInterface`](https://github.com/optimizely/php-sdk/blob/master/src/Optimizely/ProjectConfigManager/ProjectConfigManagerInterface.php) exposes `getConfig` method for retrieving `ProjectConfig` instance.
 
-#### HTTPProjectConfigManager
+#### <a name="http_config_manager"></a> HTTPProjectConfigManager
 
 [`HTTPProjectConfigManager`](https://github.com/optimizely/php-sdk/blob/master/src/Optimizely/ProjectConfigManager/HTTPProjectConfigManager.php)
 is an implementation of `ProjectConfigManagerInterface` interface.
@@ -64,7 +65,7 @@ Calling `fetch` will update the internal ProjectConfig instance that will be ret
 
 ##### Use HTTPProjectConfigManager
 
-```
+```php
 $configManager = new HTTPProjectConfigManager(<<SDK_KEY>>);
 ```
 
@@ -83,7 +84,7 @@ See the Optimizely Full Stack [developer documentation](https://developers.optim
 ##### Running all tests
 You can run all unit tests with:
 
-```
+```sh
 ./vendor/bin/phpunit
 ```