Updates webpack use docs & example config

Author: lourd

test/bundling/webpack/readme.md

@@ -1,7 +1,6 @@
 # Webpack BSON setup example
 
-In order to use BSON with webpack there are two changes beyond the default config file needed:
-- Set `experiments: { topLevelAwait: true }` in the top-level config object
+In order to use BSON with webpack there is one change beyond the default config file needed:
 - Set `resolve: { fallback: { crypto: false } }` in the top-level config object
 
 ## Testing

test/bundling/webpack/webpack.config.js

@@ -14,7 +14,6 @@ const config = {
     // Add your plugins here
     // Learn more about plugins from https://webpack.js.org/configuration/plugins/
   ],
-  experiments: { topLevelAwait: true },
   module: {
     rules: [
       {