Update Installation.md to include instructions for installing with CocoaPods (#5380)

docs/docs/Installing.md

@@ -11,6 +11,8 @@
 
 > Make sure your Xcode is updated. We recommend editing `.h` and `.m` files in Xcode as the IDE will usually point out common errors.
 
+### Native Installation
+
 1. In Xcode, in Project Navigator (left pane), right-click on the `Libraries` > `Add files to [project name]`. Add `node_modules/react-native-navigation/lib/ios/ReactNativeNavigation.xcodeproj` ([screenshots](https://facebook.github.io/react-native/docs/linking-libraries-ios.html#manual-linking)).
 
 2. In Xcode, in Project Navigator (left pane), click on your project (top), then click on your *target* row (on the "project and targets list", which is on the left column of the right pane) and select the `Build Phases` tab (right pane). In the `Link Binary With Libraries` section add `libReactNativeNavigation.a` ([screenshots](https://facebook.github.io/react-native/docs/linking-libraries-ios.html#step-2)).
@@ -72,6 +74,53 @@ You can remove `RCTBridgeDelegate` from this file: `AppDelegate.h`:
 	...
 ```
 
+### Installation with CocoaPods
+
+Projects generated using newer versions of react-native use CocoaPods by default. In that case it's easier to install react-native-navigation using CocoaPods.
+
+1. Add the following to `Podfile`:
+
+```diff
+platform :ios, '9.0'
+require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'
+
+target 'YourApp' do
+  # Pods for YourApp
+  pod 'React', :path => '../node_modules/react-native/'
+  pod 'React-Core', :path => '../node_modules/react-native/React'
+  pod 'React-DevSupport', :path => '../node_modules/react-native/React'
+  pod 'React-fishhook', :path => '../node_modules/react-native/Libraries/fishhook'
+  pod 'React-RCTActionSheet', :path => '../node_modules/react-native/Libraries/ActionSheetIOS'
+  pod 'React-RCTAnimation', :path => '../node_modules/react-native/Libraries/NativeAnimation'
+  pod 'React-RCTBlob', :path => '../node_modules/react-native/Libraries/Blob'
+  pod 'React-RCTImage', :path => '../node_modules/react-native/Libraries/Image'
+  pod 'React-RCTLinking', :path => '../node_modules/react-native/Libraries/LinkingIOS'
+  pod 'React-RCTNetwork', :path => '../node_modules/react-native/Libraries/Network'
+  pod 'React-RCTSettings', :path => '../node_modules/react-native/Libraries/Settings'
+  pod 'React-RCTText', :path => '../node_modules/react-native/Libraries/Text'
+  pod 'React-RCTVibration', :path => '../node_modules/react-native/Libraries/Vibration'
+  pod 'React-RCTWebSocket', :path => '../node_modules/react-native/Libraries/WebSocket'
+
+  pod 'React-cxxreact', :path => '../node_modules/react-native/ReactCommon/cxxreact'
+  pod 'React-jsi', :path => '../node_modules/react-native/ReactCommon/jsi'
+  pod 'React-jsiexecutor', :path => '../node_modules/react-native/ReactCommon/jsiexecutor'
+  pod 'React-jsinspector', :path => '../node_modules/react-native/ReactCommon/jsinspector'
+  pod 'yoga', :path => '../node_modules/react-native/ReactCommon/yoga'
+
+  pod 'DoubleConversion', :podspec => '../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec'
+  pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec'
+  pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec'
+
++ pod 'ReactNativeNavigation', :podspec => '../node_modules/react-native-navigation/ReactNativeNavigation.podspec'
+
+  use_native_modules!
+end
+```
+
+2. `cd ios && pod install`
+
+3. Follow 3 and 3b in the Native Installation section.
+
 ## Android
 
 > Make sure your Android Studio installation is updated. We recommend editing `gradle` and `java` files in Android Studio as the IDE will suggest fixes and point out errors, this way you avoid most common pitfalls.