Update guides/upgrading/v0.7.md

Author: Flo0807

guides/upgrading/v0.7.md

@@ -41,8 +41,8 @@ We have updated certain functions in `Backpex.Resource`.
 The following functions are affected:
 - `update/6` (`update/5` before)
 - `insert/6` (`insert/5` before)
-- [`Backpex.Resource.change/7`]()
-- [`Backpex.Resource.put_assocs/2`]() (has been removed)
+- `change/7`
+- `put_assocs/2` (has been removed)
 
 If you call one of these functions in your application, you will probably need to update the function call.