Add empty lines handling to website

docs/index.html

@@ -404,6 +404,8 @@ <h3 id="encoding-header" class="padding-top-120"><i class="glyphicon glyphicon-c
                     <p>File-Container has to be TXT.</p>
                     <p><b>Why?</b> The TXT files are quite simple and easy to understand for non-coders. You can read them and edit them with a simple txt-editor. That's what made the format so popular in the first place. So even if there are many good mark up languages like xml we keep on using TXT-Files for this decade unless there are good reasons to change that.
                     </p>
+                    <p>Empty lines are ignored.</p>
+                    <p><b>Why?</b> When editing a TXT file manually empty lines can be helpful to separate different parts of a song. Lines that consist only of whitespace characters are considered empty.</p>
 
                     <h3 id="mandatory-attributes" class="padding-top-120"><i
                             class="glyphicon glyphicon-exclamation-sign"></i> Mandatory Attributes</h3>