fix(docs): update users create token description

1. The endpoint does not create a user
2. The endpoint is incorrect

docs/references/users/create-token.md

@@ -1 +1 @@
-Returns a token with a secret key for creating a session. If the provided user ID has not be registered, a new user will be created. Use the returned user ID and secret and submit a request to the [PUT /account/sessions/custom](https://appwrite.io/docs/references/cloud/client-web/account#updateCustomSession) endpoint to complete the login process.
+Returns a token with a secret key for creating a session. Use the user ID and secret and submit a request to the [PUT /account/sessions/token](https://appwrite.io/docs/references/cloud/client-web/account#createSession) endpoint to complete the login process.