docs(await-async-query): add valid and invalid examples using screen

Author: victorandcode

docs/rules/await-async-query.md

@@ -30,6 +30,12 @@ const bar = () => {
   findByText('submit');
   // ...
 };
+
+const baz = () => {
+  // ...
+  screen.findAllByPlaceholderText('name');
+  // ...
+};
 ```
 
 Examples of **correct** code for this rule:
@@ -50,6 +56,12 @@ const bar = () => {
   });
 };
 
+const baz = () => {
+  // ...
+  await screen.findAllByPlaceholderText('name');
+  // ...
+};
+
 // return the promise within a function is correct too!
 const findMyButton = () => findByText('my button');