included boilerplates assistance to marketplace features (#71)

Author: caballoninja

sdk/unity/monetization/secondary-sales/accepting-offers.mdx

@@ -30,4 +30,10 @@ if (result is SuccessfulTransactionReturn successTransaction) {
 }else {
     // Handle fail case
 }
-```
+```
+
+You can jumpstart the process by using our Boilerplate Factory
+
+```csharp
+            BoilerplateFactory.OpenSellOfferPanel(Transform parent, ICheckout checkout, CollectibleOrder item, Action onClose = null)
+```

sdk/unity/monetization/secondary-sales/creating-listings.mdx

@@ -15,4 +15,10 @@ if (result is SuccessfulTransactionReturn successTransaction) {
 }else {
     // Handle fail case
 }
-```
+```
+
+You can jumpstart the process by using our Boilerplate Factory
+
+```csharp
+            BoilerplateFactory.OpenListItemPanel(Transform parent, ICheckout checkout, TokenBalance item, Action onClose = null)
+```

sdk/unity/monetization/secondary-sales/creating-offers.mdx

@@ -15,4 +15,19 @@ if (result is SuccessfulTransactionReturn successTransaction) {
 }else {
     // Handle fail case
 }
-```
+```
+
+
+You can jumpstart the process by using our Boilerplate Factory
+
+For wallet token balances
+
+```csharp
+            BoilerplateFactory.OpenCreateOfferPanel(Transform parent, ICheckout checkout, TokenBalance item, Action onClose = null)
+```
+
+For marketplace collectible orders
+
+```csharp
+            BoilerplateFactory. OpenCreateOfferPanel(Transform parent,ICheckout checkout, CollectibleOrder item, Action onClose = null)
+```