Update README.md (#103)

Add Image as allowed types for values.
Also, made the linking instructions for older version of React Native to be expandable to avoid confusion

Author: Naturalclar

README.md

@@ -1,6 +1,6 @@
 # `@react-native-community/segmented-control`
 
-![Supports iOS and Android][support-badge]![CircleCI branch][circle-ci-badge] ![npm][npm-badge] [![Lean Core Extracted][lean-core-badge]][lean-core-issue]
+![Supports iOS and Android and Web][support-badge]![CircleCI branch][circle-ci-badge] ![npm][npm-badge] [![Lean Core Extracted][lean-core-badge]][lean-core-issue]
 
 React Native SegmentedControl library. Use SegmentedControl to render a UISegmentedControl iOS.
 
@@ -26,11 +26,19 @@ npm install --save @react-native-community/segmented-control
 
 ## Link
 
-- React Native 0.60+
+### React Native 0.60+
 
-run `npx pod-install`
+The package is [automatically linked](https://github.com/react-native-community/cli/blob/master/docs/autolinking.md) when building the app. All you need to do is:
 
-- React Native <= 0.59
+```sh
+npx pod-install
+```
+
+For android, no linking is needed, as the module is implemented in js.
+
+<details>
+   <summary>For React Native version 0.59 or older</summary>
+### React Native <= 0.59
 
 run `react-native link @react-native-community/segmented-control`
 
@@ -42,6 +50,8 @@ New React Native comes with `autolinking` feature, which automatically links Nat
 
 `react-native unlink @react-native-community/segmented-control`
 
+</details>
+
 ## Migrating from the core `react-native` module
 
 This module was created when the segmentedControlIos was split out from the core of React Native. To migrate to this module you need to follow the installation instructions above and then change you imports from:
@@ -167,7 +177,7 @@ The labels for the control's segment buttons, in order.
 
 | Type            | Required |
 | --------------- | -------- |
-| array of string | No       |
+| (string|number|Image)[] | No       |
 
 ### `appearance`