Updating did identifier and typo

ts-client/README.md

@@ -39,7 +39,7 @@ Create a service for a `did:bnb` by using the following code snippet:
 ```typescript
 const address = "0x88a05b4370BbB90c9F3EEa72A65c77131a7bc18d";
 const provider = getDefaultProvider(process.env.RPC_URL); // e.g. https://bsc-testnet.publicnode.com	
-const chainEnv: ChainEnviroment = 'tesnet';
+const chainEnv: ChainEnviroment = 'testnet';
 const didRegistry = new DidRegistry(provider, address, {chainEnvironment: chainEnv});
 // ... use didRegistry client
 const randomDid = DidIdentifier.create(
@@ -60,7 +60,7 @@ didRegistry.resolve(randomDid)
     const address = "0x88a05b4370BbB90c9F3EEa72A65c77131a7bc18d";
     const provider = getDefaultProvider(process.env.RPC_URL); // e.g. https://bsc-testnet.publicnode.com	
     const randomWallet = Wallet.createRandom().connect(provider);
-    const chainEnv: ChainEnviroment = 'tesnet';
+    const chainEnv: ChainEnviroment = 'testnet';
     const didRegistry = new DidRegistry(randomWallet, address, {chainEnvironment: chainEnv});
     // ... use didRegistry client
     // not passing a DID will resolve the DID of the wallet address
@@ -157,7 +157,7 @@ that specific VM).
 
 ### Add External Controller (non-did:bnb DID)
 ```typescript
-  const externalController = `did:bnb:${Wallet.createRandom().address}`;
+  const externalController = `did:sol:${Wallet.createRandom().address}`;
 
    const tx: ContractTransaction = await didRegistry
            .addExternalController(externalController);