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README.md

@@ -261,6 +261,67 @@ tags: []
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 ```
 
+### File architecture
+
+ResgenSwift generate extension of classes. Those classes must exists in your project. You can create them yourself OR you can let ResgenSwift create them by specifying what you want. Do as follow: 
+
+```
+architecture:
+  property: R *(required but not used)*
+  classname: R
+  path: ./path/to/generate
+  children:
+    - property: images
+      classname: R2Image
+    - property: strings
+      classname: R2String
+    - property: fonts
+      classname: R2Font
+    - property: images
+      classname: R2Image
+    - property: uikit
+      classname: R2UI
+      children:
+        - property: images
+          classname: R2UIImage
+        - property: fonts
+          classname: R2UIFont
+        - property: images
+          classname: R2UIImage
+```
+
+This will generate a file named as the architecture classname: `R.swift`. Based on the previous architecture, it will generate:
+```
+class R {
+    static let images = R2Image()
+    static let strings = R2String()
+    static let fonts = R2Font()
+    static let images = R2Image()
+    static let uikit = R2UI()
+}
+
+class R2Image {}
+
+class R2String {}
+
+class R2Font {}
+
+class R2Image {}
+
+class R2UI {
+    let images = R2UIImage()
+    let fonts = R2UIFont()
+    let images = R2UIImage()
+}
+
+class R2UIImage {}
+
+class R2UIFont {}
+
+class R2UIImage {}
+```
+
+          
 ### Usage
 
 ```sh