docs(hackernews): fix keyword

subjects/mobile-dev/hacker-news/README.md

@@ -12,8 +12,8 @@ Your app should have the following functionalities:
 - Each `post` should display the total number of votes and comments they have.
 - Display the `username` of the `post` creator.
 - Display the submission time of the `post`.
-- Open the link in a [Webview](https://codelabs.developers.google.com/codelabs/flutter-webview#0) when a `post` is tapped.
-  - The user must be able to return to the main page once in the `webview`.
+- Open the link in a [WebView](https://codelabs.developers.google.com/codelabs/flutter-webview#0) when a `post` is tapped.
+  - The user must be able to return to the main page once in the `WebView`.
 
 On the website, users can `Post`, `Comment`, or `Reply` **only when they have an account**.
 

subjects/mobile-dev/hacker-news/audit/README.md

@@ -2,9 +2,9 @@
 
 ###### Does the app show a list of all fetched posts on the main screen?
 
-###### When you tap on a post, does it open the content in a `webview`?
+###### When you tap on a post, does it open the content in a `WebView`?
 
-###### Is it possible to go back to the main page from the `webview`?
+###### Is it possible to go back to the main page from the `WebView`?
 
 ###### When you tap on the login button, does it open the login page?