fix instabug manual link

Author: KerollosNabil

README.md

@@ -42,7 +42,7 @@ Then drag Instabug.framework into your Xcode project.
 
 ### Manually
 
-1. [Download the Instabug SDK](https://s3.amazonaws.com/instabug-pro/sdk_releases/Instabug.zip)
+1. [Download the Instabug SDK](https://s3.amazonaws.com/instabug-pro/sdk_releases/Instabug-XCFramework.zip)
 
 2. Extract it then drag & drop Instabug.framework to your project's "Embedded Binaries" section under the "General" tab, and make sure that the "Copy items if needed" checkbox is checked