modify English verbiage for push-server instructions

web-push.md

@@ -29,8 +29,8 @@ from the SERVICE.
 The SERVICE will provide context and obtain explicit permission before prompting
 for notification permission:
 
-In order to provide this context and explict permission a two-step opt-in process
+In order to provide this context and explicit permission, a two-step opt-in process
-where the user is first presented with a pre-permission dialog box that explains
+first presents the user with a pre-permission dialog box that explains
 what the notifications are for and why they are useful. This may help reduce the
 possibility of users clicking "don't allow".
 
@@ -91,7 +91,7 @@ The `sw.js` file contains the logic for what a service worker should do.
 It executes in a separate thread of execution from the web page but provides a
 means of communicating between itself and the web page via messages.
 
-Note that there is a scope can specify what network requests it may
+Note that there is a scope that can specify what network requests it may
 intercept.
 
 The Vue project already has its own service worker but it is possible to