fixe mistakes on circle.md (react-native-maps#1584)

lineJoin : wrong type

lineCap : add  other values

docs/circle.md

@@ -10,8 +10,8 @@
 | `strokeColor` | `String` | `#000`, `rgba(r,g,b,0.5)` | The stroke color to use for the path.
 | `fillColor` | `String` | `#000`, `rgba(r,g,b,0.5)` | The fill color to use for the path.
 | `zIndex` | `Number` | 0 | The order in which this tile overlay is drawn with respect to other overlays. An overlay with a larger z-index is drawn over overlays with smaller z-indices. The order of overlays with the same z-index is arbitrary. The default zIndex is 0. (Android Only)
-| `lineCap` | `String` | `round` | The line cap style to apply to the open ends of the path.
-| `lineJoin` | `Array<LatLng>` |  | The line join style to apply to corners of the path.
+| `lineCap` | `String` | `round` | The line cap style to apply to the open ends of the path. Other values : `butt`, `square`
+| `lineJoin` | `String` |  | The line join style to apply to corners of the path. possible value: `miter`, `round`, `bevel`
 | `miterLimit` | `Number` |  | The limiting value that helps avoid spikes at junctions between connected line segments. The miter limit helps you avoid spikes in paths that use the `miter` `lineJoin` style. If the ratio of the miter length—that is, the diagonal length of the miter join—to the line thickness exceeds the miter limit, the joint is converted to a bevel join. The default miter limit is 10, which results in the conversion of miters whose angle at the joint is less than 11 degrees.
 | `geodesic` | `Boolean` |  | Boolean to indicate whether to draw each segment of the line as a geodesic as opposed to straight lines on the Mercator projection. A geodesic is the shortest path between two points on the Earth's surface. The geodesic curve is constructed assuming the Earth is a sphere.
 | `lineDashPhase` | `Number` | `0` | (iOS only) The offset (in points) at which to start drawing the dash pattern. Use this property to start drawing a dashed line partway through a segment or gap. For example, a phase value of 6 for the patter 5-2-3-2 would cause drawing to begin in the middle of the first gap.