update configuration docs

docs/configuration.md

@@ -34,7 +34,13 @@ Copy the recommended basic configuration to a file called `.mockery.yaml` at the
 with-expecter: true
 packages:
     github.com/your-org/your-go-project:
-        # populate your packages configuration here
+        # place your package-specific config here
+        config:
+        interfaces:
+            # select the interfaces you want mocked
+            Foo:
+                # Modify package-level config for this specific interface (if applicable)
+                config:
 ```
 
 mockery will search upwards from your current-working-directory up to the root path, so the same configuration should be able to follow you within your project.
@@ -251,4 +257,4 @@ Legacy config options
     | `recursive`  |  Use the `recursive` option to search subdirectories for the interface(s). This option is only compatible with `name`. The `all` option implies `recursive: True`. |
     | `replace-type source=destination` | Replaces aliases, packages and/or types during generation.|
     | `testonly` | Prepend every mock file with `_test.go`. This is useful in cases where you are generating mocks `inpackage` but don't want the mocks to be visible to code outside of tests. |
-    | `with-expecter` | Use `with-expecter: True` to generate `EXPECT()` methods for your mocks. This is the preferred way to setup your mocks. |
+    | `with-expecter` | Use `with-expecter: True` to generate `EXPECT()` methods for your mocks. This is the preferred way to setup your mocks. |