Added documentation for old data alert.

Updated documentation.

README.md

@@ -1,7 +1,7 @@
 # Sofaskin-CW9009
 CW9009 Meridian code modifications to Sofaskin web page for Weewx originally developed by Sven at http://neoground.com/projects/weewx. Please see the readme for dependency requirements to use this skin. 
 
-Sofaskin V1.1 is developed by Sven at Neoground: http://neoground.com/projects/weewx. This is a great template but I made some modifications to his code to suit my purpose. I also added some code from another template by http://www.dajda.net to make the history and NOAA Tables. A list of changes are listed below along with how to setup the history tables. 
+Sofaskin V1.1 is developed by Sven at Neoground: http://neoground.com/projects/weewx. This is a great template but I made some modifications to his code to suit my purpose. I also added some code from another template by <a href="http://www.dajda.net">dajda.net</a> to make the history and NOAA Tables. There are also template updates from <a href=http://www.torkel.se/weather/index.html> Björn Torkelsson</a>, who as made some useful modification to the original Sofaskin-CW9009 template. A list of changes are listed below along with how to setup the history tables. 
 
 - Added more variables in the skin.conf files to help customize the pages. 
 - Removed monthly and yearly summary drop down list and added a separate summaries page. 
@@ -11,23 +11,29 @@ Sofaskin V1.1 is developed by Sven at Neoground: http://neoground.com/projects/w
 - Auto page refresh every ten minutes.
 - Added code from the dajda.net to produce history tables.The historygenerator.py script must be added to WeeWx in order for the - tables to work.
 - Created a PHP page template to view the NOAA climate text files.
+- Add warning if the weather data is old (more than 30 min old). (Written by Björn Torkelsson) 
 
-Responsive Menu:
+<b>Responsive Menu:</b><br>
 I wanted to added a better responsive menu system that would use less vertical space on smartphones. I added code to make a menu button when viewed on using smaller screens.
 
 ![screenshot_20161127-062548](https://cloud.githubusercontent.com/assets/22601363/20864991/f2f14eb8-b9c2-11e6-8bba-b4043f425bbb.png)
 ![screenshot_20161201-124209](https://cloud.githubusercontent.com/assets/22601363/20864992/f4b96654-b9c2-11e6-8346-650fee6db484.png)
-
-History Table:
+<br><br>
+<b>History Table:</b><br>
 The historygenerator.py script was part of a template developed by http://www.dajda.net/index.html. More information on the template is available at http://www.dajda.net/about.html and the original template is available on GitHub at 
 https://github.com/brewster76/fuzzy-archer. I had to modify the code in historygenerator.py to create the right html links in the NOAA climate summary table. I wrote a php page to display the summary. 
 
 ![template](https://cloud.githubusercontent.com/assets/22601363/20864962/3f40b91c-b9c2-11e6-8298-75bec529dc40.jpg)
+<br><br>
+<b>Old Data Alert:</b><br>
+Displays an alert message in the header when weather data is X minutes old. The default is 30 minutes but this can be adjusted in the checkdiff.js file in the js folder. 
 
-Installation instructions:
+![olddata](https://cloud.githubusercontent.com/assets/22601363/21075763/496c385c-bed7-11e6-82e8-789ffa300601.jpg)
+<br><br>
+<b>Installation instructions:</b><br>
 Installing the template is just like installing most other skins. You need to place the skin files in it’s own folder in the /etc/weewx/skins directory. You also need to change the skin variable to the new skin directory name in the weewx.conf file under Standard Reports. 
 
-Example:
+Example:<br>
 [[StandardReport]]
 skin = Sofaskin