Improve Target description on the homepage

Author: snakefoot

index.html

@@ -84,8 +84,9 @@ <h4>appsettings.json</h4>
     <section>
         <h1 class="page-header" id="targets">Targets</h1>
         <p class="lead">
-            Targets are used to display, store or pass log messages to another destination. 
-            NLog can dynamically write to one of multiple targets for each log message.
+            NLog Targets handles the writing of log events to their destination, after having formatted the LogEvent using the configured NLog Layout.
+            NLog supports sending the same LogEvent to multiple targets, so the same LogEvent can be displayed on the console, written to disk,
+            sent over the network and other destinations. Each NLog Target have their own NLog Layout with their own unique output format.
         </p>
         <p>There are more than 30 targets provided out-of-the-box, including:</p>
         <div id="targets-list">