message: docs: fix readme example
diff: @@ -58,7 +58,7 @@ import { createApiKeyMiddleware, createFetchFn, StacksMainnet } from '@stacks/ne
  import { broadcastResponse, getNonce, makeSTXTokenTransfer } from '@stacks/transactions';
  const myApiMiddleware = createApiKeyMiddleware('example_e8e044a3_41d8b0fe_3dd3988ef302');
  -const myFetchFn = createFetchFn(apiMiddleware); // middlewares can be used to create a new fetch function
  +const myFetchFn = createFetchFn(myApiMiddleware); // middlewares can be used to create a new fetch function
  const myMainnet = new StacksMainnet({ fetchFn: myFetchFn }); // the fetchFn options can be passed to a StacksNetwork to override the default fetch function
  const txOptions = {
  