include node_modules so release .zip is deployable

node_modules/@aws-crypto/ie11-detection/README.md

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+# @aws-crypto/ie11-detection
+
+Functions for interact with IE11 browsers Crypto. The IE11 `window.subtle` functions are unique.
+This library is used to identify an IE11 `window` and then offering types for crypto functions.
+For example see @aws-crypto/random-source-browser
+
+## Usage
+
+```
+import {isMsWindow} from '@aws-crypto/ie11-detection'
+
+if (isMsWindow(window)) {
+  // use `window.subtle.mscrypto`
+}
+
+```
+
+## Test
+
+`npm test`