🎨 change location of adapters (#8286)

closes #7687

- change location from content/storage or content/scheduling to content/adapters/storage or content/adapters/scheduling
- i have added a @todo to #7421 to check if both adapter types needs an update in the documentation

.gitignore

@@ -50,6 +50,8 @@ Session.vim
 /content/apps/**/*
 /content/themes/**/*
 /content/images/**/*
+/content/adapters/storage/**/*
+/content/adapters/scheduling/**/*
 !/content/themes/casper/**
 !/README.md
 

content/adapters/README.md

@@ -0,0 +1,23 @@
+# Content / Adapters
+
+
+An adapter is a way to override a default behaviour in Ghost.
+The default behaviour in Ghost is as following:
+
+### LocalFileStorage
+By default Ghost will upload your images to the `content/images` folder.
+The LocalFileStorage is using the file system to read or write images.
+This default adapter can be found in `core/server/storage/LocalFileStorage.js`.
+
+### SchedulingDefault
+By default Ghost will schedule your posts using a pure JavaScript solution.
+It doesn't use `cron` or similar.
+This default adapter can be found in `core/server/scheduling/SchedulingDefault.js`.
+
+### Custom Adapter
+To override any of the default adapters, you have to add a folder (`content/adapters/storage` or `content/adapters/scheduling`) and copy your adapter to it. 
+
+Please follow our detailed guides:
+https://github.com/TryGhost/Ghost/wiki/Using-a-custom-storage-module
+https://github.com/TryGhost/Ghost/wiki/Using-a-custom-scheduling-module
+

core/server/config/utils.js

@@ -49,16 +49,16 @@ exports.makePathsAbsolute = function makePathsAbsolute(obj, parent) {
  */
 exports.getContentPath = function getContentPath(type) {
     switch (type) {
-        case 'storage':
-            return path.join(this.get('paths:contentPath'), 'storage/');
         case 'images':
             return path.join(this.get('paths:contentPath'), 'images/');
         case 'apps':
             return path.join(this.get('paths:contentPath'), 'apps/');
         case 'themes':
             return path.join(this.get('paths:contentPath'), 'themes/');
+        case 'storage':
+            return path.join(this.get('paths:contentPath'), 'adapters', 'storage/');
         case 'scheduling':
-            return path.join(this.get('paths:contentPath'), 'scheduling/');
+            return path.join(this.get('paths:contentPath'), 'adapters', 'scheduling/');
         case 'logs':
             return path.join(this.get('paths:contentPath'), 'logs/');
         case 'data':