doc instantiation

private/pkg/wasm/compiled_module.go

@@ -41,7 +41,9 @@ func (p *compiledModule) Run(ctx context.Context, env pluginrpc.Env) error {
  // behavior of os.Exec. See wazero.ModuleConfig.WithArgs.
  WithArgs(append([]string{p.moduleName}, env.Args...)...)
 
- // Instantiate the guest wasm module into the same runtime.
+ // Instantiate the Wasm module into the runtime. This effectively runs
+ // the Wasm module. Only the effect of instantiating the module is used,
+ // the module is closed immediately after running to free up resources.
  // See: https://github.com/tetratelabs/wazero/issues/985
  wazeroModule, err := p.runtime.InstantiateModule(
  ctx,