doc: crypto(7) - fix typo
CLA: trivial
@@ -259,7 +259,7 @@ algorithm identifier to the appropriate fetching function. Also see the provider
specific manual pages linked below for further details about using the
algorithms available in each of the providers.
-As well as the OpenSSL providers third parties can also implemment providers.
+As well as the OpenSSL providers third parties can also implement providers.
For information on writing a provider see L<provider(7)>.
=head2 Default provider
