[ADF-4152] Updated folder structure of core docs (#4415)

* [ADF-4152] Moved core library docs into subfolders

* [ADF-4152] Moved core library docs into subfolders

* [ADF-4152] Manual fixes to core doc file links

* [ADF-4152] Further automatic + manual link tidying

docs/core/services/bpm-user.service.md

@@ -0,0 +1,37 @@
+---
+Title: Bpm User service
+Added: v2.0.0
+Status: Active
+Last reviewed: 2018-11-19
+---
+
+# [Bpm User service](../../../lib/core/userinfo/services/bpm-user.service.ts "Defined in bpm-user.service.ts")
+
+Gets information about the current Process Services user.
+
+## Class members
+
+### Methods
+
+-   **getCurrentUserInfo**(): [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`BpmUserModel`](../../core/models/bpm-user.model.md)`>`<br/>
+    Gets information about the current user.
+    -   **Returns** [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`BpmUserModel`](../../core/models/bpm-user.model.md)`>` - User information object
+-   **getCurrentUserProfileImage**(): `string`<br/>
+    Gets the current user's profile image as a URL.
+    -   **Returns** `string` - URL string
+
+## Details
+
+The class returned by `getCurrentUserInfo` is detailed
+in the [Bpm User model docs](../models/bpm-user.model.md).
+
+See the
+[getProfile](https://github.com/Alfresco/alfresco-js-api/blob/master/src/alfresco-activiti-rest-api/docs/ProfileApi.md#getProfile)
+and
+[getProfilePictureUrl](https://github.com/Alfresco/alfresco-js-api/blob/master/src/alfresco-activiti-rest-api/docs/ProfileApi.md#getProfilePictureUrl)
+methods in the Alfresco JS API for more information about the REST calls used by this service.
+
+## See also
+
+-   [Ecm user service](../services/ecm-user.service.md)
+-   [Bpm user model](../models/bpm-user.model.md)