fix quote

Thanks @zenofmud
6 years ago · 8b0e64953e
parent 3905d2d300
commit 8b0e64953e
1 changed files with 1 additions and 1 deletions
--- a/README.md
+++ b/README.md
@ -372,7 +372,7 @@ To add an overlay instead of a base layer - specify the `overlay` property inste
        "url": "https://nowcoast.noaa.gov/arcgis/services/nowcoast/radar_meteo_imagery_nexrad_time/MapServer/WmsServer?",
        "opt":  {
            "layers": "1",
-            "format": 'image/png",
+            "format": "image/png",
            "transparent": true,
            "attribution": "NOAA/NWS"
        },