talk/objc/README: s/libjingle/webrtc/ in repository path.

TBR=wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1985004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4501 4adac7df-926f-26a2-2b94-8c16560cd09d

talk/app/webrtc/objc/README

@@ -13,7 +13,7 @@ Prerequisites:
 - Set up webrtc-related $GYP_DEFINES; example shell functions that set
   up for building for iOS-device, iOS-simulator, and Mac (resp) are:
 function wrbase() {
-  cd /path/to/libjingle/trunk
+  cd /path/to/webrtc/trunk
   export GYP_DEFINES="build_with_libjingle=1 build_with_chromium=0 libjingle_objc=1"
   export GYP_GENERATORS="ninja"
 }