Update README.md

Author: eric-martin

README.md

@@ -15,7 +15,7 @@ Install the latest version with `composer require stackify/logger`
 
 There are three different transport options that can be configured to send data to Stackify.  Below will show how to implement the different transport options:
 
-###ExecTransport
+#### ExecTransport
 ExecTransport does not require a Stackify agent to be installed because it sends data directly to Stackify services. It collects log entries in a single batch, calls curl using the ```exec``` function, and sends it to the background immediately [```exec('curl ... &')```]. This will affect the performance of your application minimally, but it requires permissions to call ```exec``` inside the PHP script and it may cause silent data loss in the event of any network issues. This transport method does not work on Windows. To configure ExecTransport you need to pass the environment name and API key (license key):
 
 ```php
@@ -26,7 +26,8 @@ $transport = new ExecTransport('api_key');
 $logger = new Logger('application_name', 'environment_name', $transport);
 ```   
 
-####Configuration
+###### Optional Configuration
+
 <b>Proxy</b>
 - ExecTransport supports data delivery through proxy. Specify proxy using [libcurl format](http://curl.haxx.se/libcurl/c/CURLOPT_PROXY.html): <[protocol://][user:password@]proxyhost[:port]>
     ```php
@@ -38,7 +39,8 @@ $logger = new Logger('application_name', 'environment_name', $transport);
 ```php
 $transport = new ExecTransport($apiKey, ['curlPath' => '/usr/bin/curl']);
 ```
-###CurlTransport
+
+#### CurlTransport
 CurlTransport does not require a Stackify agent to be installed and it also sends data directly to Stackify services. It collects log entries in a single batch and sends data using native [PHP cURL](http://php.net/manual/en/book.curl.php) functions. This way is a blocking one, so it should not be used on production environments. To configure CurlTransport you need to pass environment name and API key (license key):
 ```php
 use Stackify\Log\Transport\CurlTransport;
@@ -48,23 +50,26 @@ $transport = new CurlTransport('api_key');
 $logger = new Logger('application_name', 'environment_name', $transport);
 ```
 
-####Configuration
+###### Optional Configuration
+
 <b>Proxy</b>
 - CurlTransport supports data delivery through proxy. Specify proxy using [libcurl format](http://curl.haxx.se/libcurl/c/CURLOPT_PROXY.html): <[protocol://][user:password@]proxyhost[:port]>
 ```php
 $transport = new CurlTransport($apiKey, ['proxy' => 'https://55.88.22.11:3128']);
 ```
-###AgentTransport
-AgentTransport does not require additional configuration in your PHP code because all data is passed to the [Stackify agent](https://stackify.screenstepslive.com/s/3095/m/7787/l/119709-installation-for-linux). The agent must be installed on the same machine. Local TCP socket is used, so performance of your application is affected minimally.
+#### AgentTransport
+
+AgentTransport does not require additional configuration in your PHP code because all data is passed to the [Stackify agent](https://stackify.screenstepslive.com/s/3095/m/7787/l/119709-installation-for-linux). The agent must be installed on the same machine. Local TCP socket on port 10515 is used, so performance of your application is affected minimally.
 ```php
 use Stackify\Log\Standalone\Logger;
 
 $logger = new Logger('appname.com');
 ```
-####Configuration
+###### Optional Configuration
 - You will need to enable the TCP listener by checking a checkbox in "Server Settings" in Stackify for your server on the Servers Page.  You can also change the default behavior for all your servers by going to the [Log Collectors Page](http://docs.stackify.com/m/7787/l/302705-log-collectors).
 
 ## Troubleshooting
+
 If transport does not work, try looking into ```vendor\stackify\logger\src\Stackify\debug\log.log``` file (if it is available for writing). Errors are also written to global PHP [error_log](http://php.net/manual/en/errorfunc.configuration.php#ini.error-log).
 Note that ExecTransport does not produce any errors at all, but you can switch it to debug mode:
 ```php