some minor improvements

Author: chetanpandey1266

specs/TrustedOrigin.md

@@ -21,7 +21,7 @@ This specification introduces the following APIs.
 
     - **GetOriginSettings**: Get the list of `CoreWebView2OriginSetting` for this profile.
     - **CreateOriginSetting**: Create and return a new `CoreWebView2OriginSetting` object.
-2. `ICoreWebView2OriginSetting`interface, which exposes get and set APIs for the following features. These APIs are used to set the feature state of these features.
+2. `ICoreWebView2OriginSetting`interface, which exposes get and set APIs for the following features. These APIs are used to set the state of these features.
 
     - AccentColor 
     - EnhancedSecurityMode
@@ -75,7 +75,7 @@ originSetting.AccentColor = Block;
 originSetting.PersistenceStorage = Allow;
 
 var originSettings = profile.GetOriginSettings();
-originSettings.Append(originSettings);
+originSettings.Append(originSetting);
 
 ```