docs: added manual linking section

Author: piotr pietruszewski

README.md

@@ -10,11 +10,14 @@
 
 - [Installation](#installation)
   - [Android](#android)
+    - [Automatic linking (React Native <=0.59)](#android-automatic-linking-with-react-native-v059-and-below)
+    - [Manual linking (React Native <=0.59)](#android-manual-linking-with-react-native-v059-and-below)
     - [Setup](#android-setup)
     - [Permissions](#android-permissions)
     - [Push Notifications](#android-push-notifications)
     - [Push notification deep links support](#android-push-notification-deep-links-support)
   - [iOS](#ios)
+    - [Manual linking (React Native <=0.59)](#ios-manual-linking-with-react-native-v059-and-below)
     - [Setup](#ios-setup)
     - [Permissions](#ios-permissions)
     - [Push Notifications](#ios-push-notifications)
@@ -40,6 +43,26 @@ yarn add @intercom/intercom-react-native
 
 If you're using React Native v0.60 or above, the library will be linked automatically without any steps being taken.
 
+#### Android: Automatic linking with React Native v0.59 and below
+
+```
+$ react-native link intercom-react-native
+```
+
+#### Android: Manual linking with React Native v0.59 and below
+
+- Add below code to `android/settings.gradle`
+
+```Gradle
+include ':intercomreactnative'
+project(':intercomreactnative').projectDir = new File(rootProject.projectDir, '../../android')
+```
+
+- Then edit `android/app/build.gradle`, inside `dependencies` at very bottom add
+
+```Gradle
+implementation project(':intercomreactnative')
+```
 
 #### Android: Setup
 
@@ -255,6 +278,10 @@ cd ..
 
 If you're using React Native v0.60 or above, the library will be linked automatically without any steps being taken.
 
+#### iOS: Manual linking with React Native v0.59 and below
+
+See [How to manually link IOS Intercom SDK](docs/IOS-MANUAL-LINKING.md)
+
 #### iOS: Setup
 
 - Open `ios/AppDelegate.m` then add below code:

docs/IOS-MANUAL-LINKING.md

@@ -0,0 +1,20 @@
+# Intercom IOS Manual linking
+
+## More info about [Manual Linking](https://reactnative.dev/docs/linking-libraries-ios)
+
+- In project root make `react-native link` command
+- In Xcode open `YourApp.xcworkspace`, if there is no file with extension `xcworkspace` open `YourApp.xcodeproj`
+- In file browser open `./node_modules/intercom-react-native/ios`
+  - From file browser drag `Intercom.xcframework` and drop in Xcode window under YourProject name
+
+    ![Xcode linking](xcode-linking.png)
+
+___
+
+- In popup mark `Copy items if needed`
+
+![Xcode popup](xcode-popup.png)
+
+___
+
+- 🎉 Done 🎉 Intercom SDK is linked