doc/projects: fix documentation for PATCH request

The functionality was fixed in canonical#13786

Signed-off-by: Ruth Fuchss <[email protected]>

doc/howto/projects_create.md

@@ -125,16 +125,10 @@ For example, to limit the number of containers that can be created in `my-projec
 
     lxc query --request PATCH /1.0/projects/my-project --data '{
       "config": {
-        "limits.containers": "5",
-        ...
+        "limits.containers": "5"
       }
     }'
 
-```{note}
-The PATCH request updates the full content of the `config` field.
-Therefore, you must specify all configuration options as part of the PATCH request, and not only the option that you want to change.
-```
-
 See [`PATCH /1.0/projects/{name}`](swagger:/projects/project_patch) for more information.
 ````
 ````{group-tab} UI