docs: fix links in FAQ (#12)

FAQ.md

@@ -18,8 +18,8 @@ video](https://www.youtube.com/watch?v=mmKvs0_Zu14&ab_channel=Shorebird).
 
 Code push is a working title.  We'll probably come up with some name to help
 differentiate it.  "Code Push" is a reference to the name of a deploy feature
-used by the React Native community from [Microsoft](appcenter.ms) and
-[Expo](appcenter.ms), neither of which support Flutter.
+used by the React Native community from [Microsoft](https://appcenter.ms) and
+[Expo](https://expo.dev), neither of which support Flutter.
 
 ### What is the status of code push?
 
@@ -119,4 +119,4 @@ Parts of the code push ("updater") system are written in Rust:
 1. Avoids starting two Dart VMs (one for the updater and one for the app).
 2. Allows accessing the updater code from multiple languages (e.g. both the C++ engine as well as a Dart/Flutter application, or even Kotlin/Swift "native" code if needed)
 
-See our [Languages Philosophy](https://github.com/shorebirdtech/handbook/blob/main/engineering.md#languages) for more information as to why we chose Rust.
+See our [Languages Philosophy](https://github.com/shorebirdtech/handbook/blob/main/engineering.md#languages) for more information as to why we chose Rust.