docs(api-queries): Fix getByAltText function name (#461)

Author: bugzpodder

docs/dom-testing-library/api-queries.md

@@ -612,7 +612,7 @@ accessible name query does not replace other queries such as `*ByAlt` or
 `*ByTitle`. While the accessible name can be equal to these attributes, it does
 not replace the functionality of these attributes. For example
 `<img aria-label="fancy image" src="fancy.jpg" />` will be returned for both
-`getByAlt('fancy image')` and `getByRole('image', { name: 'fancy image' })`.
+`getByAltText('fancy image')` and `getByRole('image', { name: 'fancy image' })`.
 However, the image will not display its description if `fancy.jpg` could not be
 loaded. Whether you want assert this functionality in your test or not is up to
 you.