docs: update image for Risk Stewards and include it in the ToC

Author: chechu

.gitbook/assets/riskSteward.png

@@ -28,6 +28,7 @@
 * [Interest Rate Model](risk/interest-rate-model.md)
 * [Risk Fund and Shortfall Handling](risk/risk-fund-and-shortfall-handling.md)
 * [Risk Management](risk/risk-management.md)
+* [Risk Oracles and Risk Stewards](risk/risk-oracle-and-risk-stewards.md)
 
 ## Tokens
 
@@ -62,6 +63,7 @@
   * [Native Token Gateway](technical-reference/reference-technical-articles/native-token-gateway.md)
   * [Omnichain Governance](technical-reference/reference-technical-articles/omnichain-governance.md)
   * [Prime tokens](technical-reference/reference-technical-articles/prime.md)
+  * [Risk Stewards](technical-reference/reference-technical-articles/risk-stewards.md)
   * [Shortfall and auctions](technical-reference/reference-technical-articles/shortfall-and-auctions.md)
   * [Token Converters](technical-reference/reference-technical-articles/token-converters.md)
   * [Two Kinks Interest Rate Curve](technical-reference/reference-technical-articles/two-kinks-interest-rate-curve.md)

.gitbook/assets/riskStewards.svg

@@ -1,4 +1,4 @@
-# Risk Steward
+# Risk Stewards
 
 ## Overview
 
@@ -218,7 +218,7 @@ Once the steward call completes:
 
 ---
 
-<figure><img src="../../.gitbook/assets/riskSteward.png" alt="riskSteward"><figcaption>riskSteward</figcaption></figure>
+<figure><img src="../../.gitbook/assets/riskStewards.svg" alt="Risk Stewards"><figcaption>Risk Stewards</figcaption></figure>
 
 ## Limitations