Renamed File Structure to File System and defined Directory Layout Prototype

docs/fs.md

@@ -0,0 +1,16 @@
+# File System
+## Directory Layout
+```text
+/META
+  fopen.json
+/MENU
+  1.fim
+/VIDEO
+  1.av1.mkv
+  2.vp9.mkv
+```
+
+- **META**
+    - **fopen.json:** contains all of the informations about the FOD disc (title, starting point etc.)
+- **MENU:** contains menu files in FOpen Interactive Markup format, more informations on the documentation page
+- **VIDEO:** contains video titles in MKV format, these must follow the standard specs

docs/structure.md

@@ -1,2 +0,0 @@
-# Format Structure
-## Directory Layout

mkdocs.yml

@@ -1,5 +1,5 @@
-site_name: My Docs
+site_name: FOpen Drive Documentation
 theme: readthedocs
 
 nav:
-  - Structure: structure.md
+  - File System: fs.md