Update releaseNotes/AppConfigurationEmulator.md

Co-authored-by: Jimmy Campbell <jimmyca@microsoft.com>

Author: zhiyuanliang-ms

releaseNotes/AppConfigurationEmulator.md

@@ -13,7 +13,7 @@ The Azure App Configuration Emulator is a local development tool that provides a
 * Authentication Methods
   * Anonymous authentication
   * HMAC authentication
-* REST APIs
+* Resources
   * `/keys`
   * `/kv`
   * `/labels`