Update examples/soroban/nft/src/nft.rs

Co-authored-by: Willem Wyndham <willem@wyndham.tech>

Author: elizabethengelman

examples/soroban/nft/src/nft.rs

@@ -42,7 +42,7 @@ impl Default for MyNonFungibleToken {
 }
 
 impl IsInitable for MyNonFungibleToken {
-    fn nft_init(&mut self, admin: Address, name: Bytes) {
+    fn nft_init(&self, admin: Address, name: Bytes) {
         Contract::admin_get().unwrap().require_auth();
         MyNonFungibleToken::set_lazy(MyNonFungibleToken::new(admin, name));
     }

examples/soroban/nft/src/subcontract.rs

@@ -30,7 +30,7 @@ pub trait IsNonFungible {
 #[subcontract]
 pub trait IsInitable {
     fn nft_init(
-        &mut self,
+        &self,
         admin: loam_sdk::soroban_sdk::Address,
         name: loam_sdk::soroban_sdk::Bytes,
     );