refactor: move endpoints from global to repository

lib/config/definitions.js

@@ -1138,7 +1138,7 @@ const options = [
     name: 'endpoints',
     description: 'Endpoint configuration for credentials',
     type: 'list',
-    stage: 'global',
+    stage: 'repository',
     mergeable: true,
   },
 ];

website/docs/configuration-options.md

@@ -193,6 +193,20 @@ Example:
 
 See https://renovatebot.com/docs/deep-dives/private-modules for details on how this is used to encrypt npm tokens.
 
+## endpoints
+
+Example for configuring `docker` auth:
+
+```json
+{
+  "endpoints": {
+    "platform": "docker",
+    "username": "<some-username>",
+    "password": "<some-password>"
+  }
+}
+```
+
 ## engines
 
 Extend this if you wish to configure rules specifically for `engines` definitions. Currently only `node` is supported.

website/docs/self-hosted-configuration.md

@@ -13,8 +13,6 @@ Be cautious when using this option - it will run Renovate over _every_ repositor
 
 ## endpoint
 
-## endpoints
-
 ## exposeEnv
 
 ## force