Fix screenshot links

Author: Rad Azzouz

README.md

@@ -30,7 +30,7 @@ The [PSPDFKit SDK](https://pspdfkit.com/) is a framework that allows you to view
 - Xcode 10.2.1
 - PSPDFKit 8.4.2 for iOS or later
 - react-native >= 0.60.3
-- CocoaPods >= 1.7.2
+- CocoaPods >= 1.7.4
 
 #### Getting Started
 
@@ -77,7 +77,7 @@ target 'YourApp' do
   pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec'
 
   pod 'react-native-pspdfkit', :path => '../node_modules/react-native-pspdfkit'
-+  pod 'PSPDFKit', podspec: 'https://customers.pspdfkit.com/cocoapods/YOUR_COCOAPODS_KEY_GOES_HERE/pspdfkit/latest.podspec'
++ pod 'PSPDFKit', podspec: 'https://customers.pspdfkit.com/cocoapods/YOUR_COCOAPODS_KEY_GOES_HERE/pspdfkit/latest.podspec'
 
   use_native_modules!
 end
@@ -86,12 +86,12 @@ end
 8. Go back to the Terminal, `cd ios` then run `pod install`
 9. Open `ios/YourApp.xcworkspace` in Xcode: `open ios/YourApp.xcworkspace`
 10. Make sure the deployment target is set to 11.0 or higher: 
-![Deployment Target](../screenshots/deployment-target.png)
+![Deployment Target](screenshots/deployment-target.png)
 11. Change "View controller-based status bar appearance" to `YES` in `Info.plist`:
-    ![View Controller-Based Status Bar Appearance](../screenshots/view-controller-based-status-bar-appearance.png)
+    ![View Controller-Based Status Bar Appearance](screenshots/view-controller-based-status-bar-appearance.png)
 
 12. Add a PDF by drag and dropping it into your Xcode project (Select "Create groups" and add to target "YourApp"). This will add the document to the "Copy Bundle Resources" build phase: 
-![Adding PDF](../screenshots/adding-pdf.png)
+![Adding PDF](screenshots/adding-pdf.png)
 13. Replace the default component from `index.ios.js` with a simple touch area to present the bundled PDF:
 
 ```javascript