Explanation of Different Builds doesn't mention browser builds

[sliekens]

I'm a first-time user following the installation guide and I noticed that the NPM package contains bundles that aren't mentioned anywhere.

• vue/dist/vue.esm.browser.js
• vue/dist/vue.esm.browser.min.js

Don't these files deserve a mention here?
https://github.com/vuejs/vuejs.org/blob/a32e1567979aff0b0f7736c6901958b202d4afc9/src/v2/guide/installation.md#explanation-of-different-builds

[Phinome]

from vue build script: https://github.com/vuejs/vue/blob/dev/scripts/config.js#L96 . we will see, it should more clear at docs.

[Justineo]

See vuejs/vue#7110 (comment).