Fix app typo

src/index.html

@@ -199,7 +199,7 @@ <h2>
       <h2>
         <pre>Cypress.env('secret')</pre>
       </h2>
-      <p>Sometimes, when testing we apps, we need to input some sensitive data.</p>
+      <p>Sometimes, when testing web apps, we need to input some sensitive data.</p>
       <p>However, it's not recommended to version such data, or even let it leak, hardcoding it in the test file.</p>
       <p>To deal with that, Cypress offers a few options.</p>
       <p>First, you can create a file called <code>cypress.env.json</code> and add it to the <code>.gitignore</code> file, so it won't be versioned.</p>