Add React Native doctor blog post

[lucasbento]

This PR is to add the React Native doctor blog post announcement.

TODO

• Release react-native-community/cli v3 (dependent on feat: run npx from JS app dir react-native-community/cli#824)
• Include video showcasing the command
• Change the date of the post to the actual announcement date

[lucasbento]

@rickhanlonii@thymikee please give a review.

[react-native-bot]

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[rickhanlonii]

Looks good! I left a few suggestions, and what do you think about mentioning that doctor is a standard command with other tools that provide it like homebrew? As it stands, it can be read as if to say we're inventing this but in actuality it's building on prior art

Also, to add some more content and because people would be curious, how about adding a section that lists all of the checks we currently do and why they're necessary for react native?

[lucasbento]

@rickhanlonii: thank you for the review, gonna work on the changes!

[lucasbento]

@rickhanlonii: changes done!

Also, to add some more content and because people would be curious, how about adding a section that lists all of the checks we currently do and why they're necessary for react native?

I think this is good, I tried adding it but it's a lot of repetition, such as:

Node.js: checks that you are running on a supported Node.js version.
Yarn: exactly same thing as Node.js

So I'm not so sure about it.

[lucasbento]

Also added a video to showcase the command, please let me know your thoughts 😄

cc @thymikee

[rickhanlonii]

I was thinking basically listing the same info that is in the video:

So:

What checks do we run

We check for the basics such as:

• Node (6.0+)
• Yarn (1.0+)
• Watchman (4.0+), used for watching changes in the filesystem when in development mode

We'll also run checks for the Android environment:

• Android SDK (X+), the software runtime for Android
• Android NDK (X+), the native development toolkit for Android
• ANDROID_HOME, require environment variable for all android SDK setups

and the iOS environment:

• XCode - etc
• CocoaPods - etc
• ios-deploy - etc

[rickhanlonii]

@lucasbento thee video looks awesome, great work 🎉

[lucasbento]

@rickhanlonii thanks! I will add those things tomorrow morning.

[thymikee]

Looking good! Left some suggestions to think about

[lucasbento]

@rickhanlonii@thymikee: all done, please check again :D

[thymikee]

LGTM 👍 Let's keep in mind that we'll need to release the CLI v3 first

[rickhanlonii]

Look great, this is so exciting!

[thymikee]

Technically 0.61 has it already, should we update that or maybe we want to get people a bit more excited about next major?

[lucasbento]

I'm honestly not sure about this.

@rickhanlonii what do you think?

[cpojer]

Are we ready to launch this?

[cpojer]

Awesome!