stubs for sys design sections

specification/docs/system-design.md

@@ -156,21 +156,27 @@ To achieve the Rollup requirements, the contract must do the following:
 
     1. If this method is called to replace a batch worker who has failed to submit the next batch, a Validation Pool should be initiated and the batch worker's stakes submitted in favor of the VP. The DAO members may then stake against this VP, punishing the worker who failed to submit the batch.
 
-## Automated Staking
- 
-- On-chain Direct Pool
-- Rollup
+## Backend
 
-## Web App
-
-## API
+### API
 
 - Read
 - Write
 
+### Automated Staking
+ 
+#### Validation Pool
+
+#### Rollup
+
+## User Interface
+
+### Web App
+
+### Widget
+
 ## Other
 
-- Widget
 - Register Matrix Identity
 - Imprt from Semantic Scholar
 - Import from Matrix