[Proposal] could you please move(or duplicate) the information relating to platform from `gemfile.5.html` to ` bundle-platform.1`?

[xiaoronglv]

Problem:

many people have encountered the platform issue after upgrading the bundler. They try to search info about the meaning of platform and try to fix their local development problem.

The detailed info about platform is located in gemfile.5.html, but google always redirect people to bundle-platform.1.html

If we can duplicate a copy of the content from Gemfile to bundle-platform.1, it will be more friendly and efficient for ruby developers to find out the answer.

Here is how does google search results loos like.

Here is the detail info about platform, but it's located in gemfile.5.html