Update html-aam/index.html

Co-authored-by: Hidde de Vries <[email protected]>

html-aam/index.html

@@ -16105,7 +16105,7 @@ <h4>`input type="button"`, `input type="submit"` and `input type="reset"` Elemen
               use the value of the control's `value` attribute.</li>
             <li>
               For `input type=submit` and `type=reset`: 
-              if the <a data-cite="accname-1.2/#dfn-accessible-name">accessible name</a> is still empty, and the `value` attribute is unspecified use the
+              if the <a data-cite="accname-1.2/#dfn-accessible-name">accessible name</a> is still empty, and the `value` attribute is unspecified, use the
               <a href="https://infra.spec.whatwg.org/#implementation-defined">implementation defined</a> string respective to the input type. 
               For instance, a localized string of the word "submit" or "reset" respective to the type of `input`.
             </li>