fix: docs nit fixes

google-oauth-client/src/main/java/com/google/api/client/auth/openidconnect/IdTokenVerifier.java

@@ -234,7 +234,7 @@ public final Collection<String> getAudience() {
    *
    * @param idToken ID token
    * @return {@code true} if verified successfully or {@code false} if failed
-   * @throws IOException thrown if verification failed to run. For example, failure to get public
+   * @throws IOException if verification fails to run. For example, if it fails to get public
    *     keys for signature validation.
    */
   public boolean verify(IdToken idToken) throws IOException {

google-oauth-client/src/test/java/com/google/api/client/auth/openidconnect/IdTokenVerifierTest.java

@@ -330,7 +330,7 @@ public void testVerifyServiceAccountRs256Token() throws IOException {
             .build();
     assertTrue(tokenVerifier.verify(IdToken.parse(JSON_FACTORY, SERVICE_ACCOUNT_RS256_TOKEN)));
 
-    // a token with bad signature expected to fail in verify and work in verifyPayload
+    // a token with a bad signature that is expected to fail in verify, but work in verifyPayload
     assertFalse(
         tokenVerifier.verify(
             IdToken.parse(JSON_FACTORY, SERVICE_ACCOUNT_RS256_TOKEN_BAD_SIGNATURE)));