Update Swift Package link in README (#416)

Author: Br1an-Boyle

README.md

@@ -56,9 +56,7 @@ Add the Intercom pod into your Podfile and run `pod install`.
 ```
 
 ### Swift Package Manager
-Add `https://github.com/intercom/intercom-ios` as a Swift Package Repository in Xcode and follow the instructions to add `Intercom` as a Swift Package.
-
-![spm](https://user-images.githubusercontent.com/3185423/104470769-fac94980-55b1-11eb-80e5-929e77bc5558.png)
+Add `https://github.com/intercom/intercom-ios-sp` as a Swift Package Repository in Xcode and follow the instructions to add `Intercom` as a Swift Package.
 
 ### Manual Installation