Update readme to prioritize CJS over ESM

Inspired by the recent discussion in #137

readme.md

@@ -73,19 +73,18 @@ deepmerge can be used directly in the browser without the use of package manager
 
 ### Includes
 
-CommonJS:
+CommonJS is recommended:
+
 ```
 var merge = require('deepmerge')
 ```
 
-ES Modules:
+deepmerge doesn't expose an ES Module (true ESM support was removed because of a [Webpack bug](https://github.com/webpack/webpack/issues/6584)), but you can use the ES Module syntax if your bundler supports it and you really want to:
+
 ```
-import * as deepmerge from 'deepmerge'
+import * as merge from 'deepmerge'
 ```
 
-(support for `import merge from 'deepmerge'` was removed because of a [Webpack bug](https://github.com/webpack/webpack/issues/6584)).
-
-
 # API