Updating readme with developer terms.

Summary: Moved license info to the bottom + appended developer terms.

Test Plan:
None

Reviewers: jacl, gregschechte, ekoneil

Reviewed By: gregschechte

CC: msdkexp@

Differential Revision: https://phabricator.fb.com/D540334

README

@@ -3,11 +3,9 @@ Facebook SDK for iOS
 
 This open-source library allows you to integrate Facebook into your iOS app.
 
-Except as otherwise noted, the Facebook SDK for iOS is licensed under the Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0.html).
-
 Learn more about about the provided samples, documentation, integrating the SDK into your app, accessing source code, and more at https://developers.facebook.com/ios
 
-NOTE: By default, the Facebook SDK for iOS is installed in ~/Documents/FacebookSDK 
+NOTE: By default, the Facebook SDK for iOS is installed in ~/Documents/FacebookSDK
 
 TRY IT OUT
 
@@ -17,5 +15,18 @@ TRY IT OUT
 
 3. Start coding! Visit https://developers.facebook.com/ios for tutorials and reference documentation.
 
+LICENSE
+
+Except as otherwise noted, the Facebook SDK for iOS is licensed under the Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0.html).
+
+DEVELOPER TERMS
+
+- By enabling Facebook integrations, including through this SDK, you can share information with Facebook, including information about people’s use of your app. Facebook will use information received in accordance with our Data Use Policy [https://www.facebook.com/about/privacy/], including to provide you with insights about the effectiveness of your ads and the use of your app.  These integrations also enable us and our partners to serve ads on and off Facebook.
+
+- You may limit your sharing of information with us by updating the insights control in the developer tool [https://developers.facebook.com/apps/<app_id>/advanced].
+
+- If you use a Facebook integration, including to share information with us, you agree and confirm that you have provided appropriate and sufficiently prominent notice to and obtained the appropriate consent from your users regarding such collection, use, and disclosure (including, at a minimum, through your privacy policy). You further agree that you will not share information with us about children under the age of 13.
 
+- You agree to comply with all applicable laws and regulations and also agree to our Terms <https://www.facebook.com/policies/>, including our Platform Policies <https://developers.facebook.com/policy/>.and Advertising Guidelines, as applicable <https://www.facebook.com/ad_guidelines.php>.
 
+By using the Facebook iOS SDK or clicking “Continue” below you agree to these terms.

README.mdown

@@ -3,11 +3,9 @@ Facebook SDK for iOS
 
 This open-source library allows you to integrate Facebook into your iOS app.
 
-Except as otherwise noted, the Facebook SDK for iOS is licensed under the Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0.html).
-
 Learn more about about the provided samples, documentation, integrating the SDK into your app, accessing source code, and more at https://developers.facebook.com/ios
 
-NOTE: By default, the Facebook SDK for iOS is installed in ~/Documents/FacebookSDK 
+NOTE: By default, the Facebook SDK for iOS is installed in ~/Documents/FacebookSDK
 
 TRY IT OUT
 
@@ -17,5 +15,18 @@ TRY IT OUT
 
 3. Start coding! Visit https://developers.facebook.com/ios for tutorials and reference documentation.
 
+LICENSE
+
+Except as otherwise noted, the Facebook SDK for iOS is licensed under the Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0.html).
+
+DEVELOPER TERMS
+
+- By enabling Facebook integrations, including through this SDK, you can share information with Facebook, including information about people’s use of your app. Facebook will use information received in accordance with our Data Use Policy [https://www.facebook.com/about/privacy/], including to provide you with insights about the effectiveness of your ads and the use of your app.  These integrations also enable us and our partners to serve ads on and off Facebook.
+
+- You may limit your sharing of information with us by updating the insights control in the developer tool [https://developers.facebook.com/apps/<app_id>/advanced].
+
+- If you use a Facebook integration, including to share information with us, you agree and confirm that you have provided appropriate and sufficiently prominent notice to and obtained the appropriate consent from your users regarding such collection, use, and disclosure (including, at a minimum, through your privacy policy). You further agree that you will not share information with us about children under the age of 13.
 
+- You agree to comply with all applicable laws and regulations and also agree to our Terms <https://www.facebook.com/policies/>, including our Platform Policies <https://developers.facebook.com/policy/>.and Advertising Guidelines, as applicable <https://www.facebook.com/ad_guidelines.php>.
 
+By using the Facebook iOS SDK or clicking “Continue” below you agree to these terms.