minor #4325 [Components][Form] Correct a typo (fabschurt)

This PR was merged into the 2.3 branch.

Discussion
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[Components][Form] Correct a typo

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3+
| Fixed tickets | n/a

Removed uncorrect "load use" phrase part, and replaced it with "you can
use", which I guess conveys the original meaning of the phrase better.

Commits
-------

3d3388d Correct a typo.

Author: wouterj

components/form/introduction.rst

@@ -137,7 +137,7 @@ and validated when binding the form.
 
 .. tip::
 
-    If you're not using the HttpFoundation component, load use
+    If you're not using the HttpFoundation component, you can use
     :class:`Symfony\\Component\\Form\\Extension\\Csrf\\CsrfProvider\\DefaultCsrfProvider`
     instead, which relies on PHP's native session handling::