Add documentation for chain/isValidPublicAddress (#762)

* Add documentation for chain/isValidPublicAddress

* Update content/documentation/rpc/chain/is_valid_public_address.mdx

Co-authored-by: Hugh Cunningham <[email protected]>

---------

Co-authored-by: Hugh Cunningham <[email protected]>

Author: NullSoldier

content/documentation/rpc/chain/is_valid_public_address.mdx

@@ -0,0 +1,26 @@
+---
+title: chain/isValidPublicAddress
+description: RPC Chain | Iron Fish Documentation
+---
+
+Checks whether a given public address is valid
+
+A valid public address is one that is well formed, not one that is guaranteed to belong to a wallet.
+
+#### Request
+
+```ts
+{
+  address: string
+}
+```
+
+#### Response
+
+```ts
+{
+  valid: boolean;
+}
+```
+
+###### [View on Github](https://github.com/iron-fish/ironfish/blob/master/ironfish/src/rpc/routes/chain/isValidPublicAddress.ts)

content/documentation/sidebar.ts

@@ -307,6 +307,10 @@ export const sidebar: SidebarDefinition = [
                 id: "rpc/chain/show_chain",
                 label: "showChain",
               },
+              {
+                id: "rpc/chain/is_valid_public_address",
+                label: "isValidPublicAddress",
+              },
             ],
           },
           {