Unflagging announcement

[GeoffreyBooth]

This is a draft of a potential blog post to announce the unflagging of --experimental-modules. Almost all the text here comes from our 12.0.0 new implementation announcement or the Node ESM docs.

Rich text: https://github.com/nodejs/modules/pull/434/files?short_path=a0f536f#diff-a0f536f51fc94fbab6e56ead0a79c85f

[GeoffreyBooth]

Also I think the deadline for this is quite soon, probably Monday 2019-11-18. Per nodejs/Release#487 the next release of Node.js will be on Tuesday 2019-11-19, which I’m presuming will be 13.2.0 and will contain the unflagging; so this announcement will likely need to go live then.

[DerekNonGeneric]

Moved to #436: Unique behavior of package type searches that occur within a node_modules.

[GeoffreyBooth]

I’m sorry @mathiasbynens, but this has already been sent to the communications team to post. Unless there are any outright errors in the text that we should rush to their attention to try to fix before they publish, I think we should keep the version in this repo matching whatever they post.

[MylesBorins]

I'm going to go ahead and land this since text has been shared with marketing teM