typos (passwordless-id#13)

* two typos corrected

* typo "playground"

* typo playground

* fixed typo without reformatting

* fixed formatting change

* fixed formatting change ..

README.md

@@ -1,7 +1,7 @@
 Passwordless.ID / webauthn
 ==========================
 
-A greatly simplified and opiniated wrapper to invoke the [webauthn protocol](https://w3c.github.io/webauthn/) more conviniently.
+A greatly simplified and opinionated wrapper to invoke the [webauthn protocol](https://w3c.github.io/webauthn/) more conveniently.
 
 <img src="demos/img/banner-biometric-auth.svg" />
 

demos/playground.html

@@ -18,7 +18,7 @@ <h1 class="title">Webauthn Playground</h1>
  </div>
  </header>
 
- <p class="mt-5 has-text-centered">This is a plaground for <a href="https://www.npmjs.com/package/@passwordless-id/webauthn">the webauthn wrapper library</a>. Nothing here is sent to any server, everything runs locally.</p>
+ <p class="mt-5 has-text-centered">This is a playground for <a href="https://www.npmjs.com/package/@passwordless-id/webauthn">the webauthn wrapper library</a>. Nothing here is sent to any server, everything runs locally.</p>
 
  <ul>
  <li>Registration (browser part)</li>
@@ -257,4 +257,4 @@ <h2 class="title">Signature validation</h2>
 
 <script type="module" src="js/playground.js"></script>
 </body>
-</html>
+</html>