Update README.md

README.md

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 # Dump1090-OpenLayers3-html
-Modifications to the OL3 html files (part of the dump1090-fa branch).  The contents of public_html are a complete replacement to the webserver root directory on your dump1090-fa, or compatible, installation.  Better to rename your existing html folder, and copy this one in (calling it as per the orignal).  Set your options at the bottom of config.js (you must also update your site lat/long (2 places) in this file), clear your browser cache and re-load your dump1090-fa page.
+Modifications to the OL3, then an upgrade to OL6, html files (part of the dump1090-fa branch).  The contents of public_html are a complete replacement to the webserver root directory on your dump1090-fa, or compatible, installation.  Better to rename your existing html folder, and copy this one in (calling it as per the orignal).  Set your options at the bottom of config.js (you must also update your site lat/long (2 places) in this file), clear your browser cache and re-load your dump1090-fa page.
 
 Originaly amended for my own purposes, but having had several requests to share these changes I have decided to place them in this forum. The new layers are only really useful if you have aircraft in UK airspace.  Other modifications can provide value in other regions.