grammar fixes

Author: helgabalashova

src/fragments/lib/auth/js/emailpassword.mdx

@@ -68,8 +68,8 @@ async function confirmSignUp() {
 }
 ```
 
-As part of the options parameter, you can specify `forceAliasCreation` boolean. By default
-set to `True`. If set to `False` and email or phone number used for sign up confirmation
+As part of the options parameter, you can specify the `forceAliasCreation` boolean. By default
+set to `True`. If set to `False` and the email or phone number used for sign up confirmation
 already exists as an alias for a different user, the API will throw an `AliasExistsException`
 error. If set to `True`, the API call will migrate the alias from the previous user to 
 a newly created user.