document logging out

docs/index.rst

@@ -955,7 +955,8 @@ App registration and user authentication
 ----------------------------------------
 Before you can use the Mastodon API, you have to register your
 application (which gets you a client key and client secret)
-and then log in (which gets you an access token). These functions
+and then log in (which gets you an access token) and out (revoking
+the access token you are logged in with). These functions
 allow you to do those things. Additionally, it is also possible
 to programmatically register a new user.
 
@@ -980,6 +981,7 @@ is specified, Mastodon.py defaults to https.
 .. automethod:: Mastodon.log_in
 .. _auth_request_url():
 .. automethod:: Mastodon.auth_request_url
+.. automedhod:: Mastodon.revoke_access_token
 .. automethod:: Mastodon.create_account
 .. automethod:: Mastodon.email_resend_confirmation