add browser chart labels

Author: ansonl

README.md

@@ -6,7 +6,7 @@ A limited web client [demo](https://navadmin-viewer.github.io/) for viewing Navy
 
 [![NAVADMIN Viewer web screenshot](https://raw.githubusercontent.com/navadmin-viewer/navadmin-viewer.github.io/master/assets/navadmin-viewer-web-screenshot.png)](https://navadmin-viewer.github.io/)
 
-## Browser support as of 15APR2020
+## Browser support tested 15APR2020
 
 ![Chrome](https://raw.githubusercontent.com/navadmin-viewer/navadmin-viewer.github.io/master/assets/browser-logos/chrome_48x48.png) | ![IE 11](https://raw.githubusercontent.com/navadmin-viewer/navadmin-viewer.github.io/master/assets/browser-logos/internet-explorer_9-11_48x48.png) | ![Edge](https://raw.githubusercontent.com/navadmin-viewer/navadmin-viewer.github.io/master/assets/browser-logos/edge_12-18_48x48.png) | ![Safari](https://raw.githubusercontent.com/navadmin-viewer/navadmin-viewer.github.io/master/assets/browser-logos/safari_48x48.png)| ![Firefox](https://raw.githubusercontent.com/navadmin-viewer/navadmin-viewer.github.io/master/assets/browser-logos/firefox_48x48.png) 
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