Update BUILDING.md

BUILDING.md

@@ -31,12 +31,12 @@ You can then add the Session repo to sync with upstream changes:
 git remote add upstream https://github.com/loki-project/session-ios
 ```
 
-## 2. Dependencies
+## 2. Pods
 
 To build and configure the libraries Session uses, just run:
 
 ```
-make dependencies
+pod install
 ```
 
 ## 3. Xcode
@@ -49,16 +49,12 @@ open Signal.xcworkspace
 
 In the TARGETS area of the General tab, change the Team dropdown to
 your own. You will need to do that for all the listed targets, for ex.
-Signal, SignalShareExtension, and SignalMessaging. You will need an Apple
-Developer account for this.
+Session, SessionShareExtension, and SessionPushNotificationExtension. You
+will need an Apple Developer account for this.
 
 On the Capabilities tab, turn off Push Notifications and Data Protection,
 while keeping Background Modes on. The App Groups capability will need to
-remain on in order to access the shared data storage. The App ID needs to
-match the SignalApplicationGroup string set in TSConstants.h.
-
-If you wish to test the Documents API, the iCloud capability will need to
-be on with the iCloud Documents option selected.
+remain on in order to access the shared data storage.
 
 Build and Run and you are ready to go!