Update README.md (bozdoz#184)

Fix link to the stroke options documentation

README.md

@@ -238,7 +238,7 @@ Virtually the same as [leaflet-line](above)
 
 ![Circle](https://i.imgur.com/rVHH6Zm.png?1234)
 
-Add a circle to the map by adding `[leaflet-circle]`. You can specify the position using `lat` and `lng` and the radius in meters using `radius`. You can also customize the style using [Leaflet's Path options](https://leafletjs.com/reference-1.3.4.html#path-option). Example: `[leaflet-circle message="max distance" lng=5.1179 lat=52.0979 radius=17500 color="#0DC143" fillOpacity=0.1]`.
+Add a circle to the map by adding `[leaflet-circle]`. You can specify the position using `lat` and `lng` and the radius in meters using `radius`. You can also customize the style using [Leaflet's Path options](https://leafletjs.com/reference.html#path). Example: `[leaflet-circle message="max distance" lng=5.1179 lat=52.0979 radius=17500 color="#0DC143" fillOpacity=0.1]`.
 
 #### [leaflet-circle] Options