Updated readme.

Updated readme with more details about requirements.

Author: aksh1t

example/README.md

@@ -2,18 +2,34 @@
 
 This is a brief example of how to use the PSPDFKit with Flutter.
 
+# Requirements
+
+## Android
+
+- Android SDK 29.0.3 or later
+- PSPDFKit 6.5.2 for Android or later
+- Flutter 1.22.0-12.1.pre or later
+
+## iOS
+
+- Xcode 12
+- PSPDFKit 10.0.0 for iOS or later
+- Flutter 1.21.0-9.2.pre or later
+- CocoaPods 1.10.0.rc.1 or later (Update cocoapods with: `gem install cocoapods -v 1.10.0.rc.1`)
+
 # Running the Example Project
 
-1. Clone the repository `git clone https://github.com/PSPDFKit/pspdfkit-flutter.git`
+1. Before trying to run the project, please make sure that you are on the correct versions of all the tools mentioned above.
+2. Clone the repository `git clone https://github.com/PSPDFKit/pspdfkit-flutter.git`
 
-2. Create a local property file in `pspdfkit-flutter/example/android/local.properties` and specify the following properties:
+3. Create a local property file in `pspdfkit-flutter/example/android/local.properties` and specify the following properties:
 
 ```local.properties
 sdk.dir=/path/to/your/Android/sdk
 flutter.sdk=/path/to/your/flutter/sdk
 flutter.buildMode=debug
 ```
 
-3. cd `pspdfkit-flutter/example`
-4. Run `flutter emulators --launch <EMULATOR_ID>` to launch the desired emulator. Optionally, you can repeat this step to launch multiple emulators.
-5. The app is ready to start! Run `flutter run -d all` and the PSPDFKit Flutter example will be deployed on all your devices connected, both iOS and Android.
+4. cd `pspdfkit-flutter/example`
+5. Run `flutter emulators --launch <EMULATOR_ID>` to launch the desired emulator. Optionally, you can repeat this step to launch multiple emulators.
+6. The app is ready to start! Run `flutter run -d all` and the PSPDFKit Flutter example will be deployed on all your devices connected, both iOS and Android.