add more info on blogging..

BLOG.md

@@ -55,3 +55,8 @@ Use the following, replace `sn-demo` w/ unique id.
 <input type="checkbox" id="sn-demo" class="margin-toggle"/>
 <span class="sidenote"></span>
 ```
+
+Non-breaking hyphen
+-------------------
+
+&#x2011;