updated markdown example with data-charset

plugin/markdown/example.html

@@ -16,8 +16,8 @@
 
 			<div class="slides">
 
-                <!-- Use external markdown resource, and separate slides by three newlines; vertical slides by two newlines -->
-                <section data-markdown="example.md" data-separator="^\n\n\n" data-vertical="^\n\n"></section>
+                <!-- Use external markdown resource, separate slides by three newlines; vertical slides by two newlines and specify a custom charset -->
+                <section data-markdown="example.md" data-separator="^\n\n\n" data-vertical="^\n\n" data-charset="iso-8859-15"></section>
 
                 <!-- Slides are separated by three dashes (quick 'n dirty regular expression) -->
                 <section data-markdown data-separator="---">