Tweak docs about moving

docs/user_guide.md

@@ -241,6 +241,8 @@ If you want to move followers from your existing account, ensure it is supported
 
 For [Mastodon you can look at Moving or leaving accounts](https://docs.joinmastodon.org/user/moving/).
 
+If you wish to move **to** another instance, see [Moving to another instance](/user_guide.html#moving-to-another-instance).
+
 First you need to grab the "ActivityPub actor URL" for your existing account:
 
 ### Python edition
@@ -323,6 +325,8 @@ If you want to migrate to another instance, you have the ability to move your ex
 
 Your new account should reference the existing one, refer to your software configuration (for example [Moving or leaving accounts from the Mastodon doc](https://docs.joinmastodon.org/user/moving/)).
 
+If you wish to move **from** another instance, see [Moving from another instance](/user_guide.html#moving-from-another-instance).
+
 Execute the Move task:
 
 #### Python edition