Add clear deprecation notice

[ghost]

https://core.trac.wordpress.org/ticket/40471

For users landing from GitHub search, this repo leaves little indication it is not the master. There is a note at the top of the repo indicating such, but it's easy to miss. Please update README for clarity.

Here's an example of clear deprecation in a README:

Also, as mentioned in the related TRAC ticket, it would be nice to also provide a quick means for individuals to access the source code (e.g. via cURL) since that's what I've been doing with this source to fix mistakes when I derp in the Appearance Editor in WordPress while customizing:

curl -O https://raw.githubusercontent.com/WordPress/twentyseventeen/master/funcntions.php

[ntwb]

It is already documented in the issue template here when creating issues that development has moved from GitHub to Trac:

Development of Twenty Seventeen has now moved from GitHub to Trac.

Please cancel creating this issue and [search Trac for an existing ticket](https://core.trac.wordpress.org/query?status=accepted&status=assigned&status=new&status=reopened&status=reviewing&component=Bundled+Theme&milestone=4.7&col=id&col=summary&col=status&col=owner&col=type&col=priority&col=milestone&order=priority) or [create a new ticket](https://core.trac.wordpress.org/newticket?component=Bundled%20Theme) and patch on Trac

Thank you for taking the time to contribute to Twenty Seventeen!

[ghost]

@ntwb I don't believe you read my description.

[lukecav]

The example you referenced was very clear for This Project Is Deprecated wording.

Example https://github.com/jhabdas/react-native-webpack-starter-kit/blob/master/README.md

Current README.md https://github.com/WordPress/twentyseventeen/blob/master/README.md

[ntwb]

Twenty Seventeen is not deprecated, development has moved from GitHub to Trac

The code mirrored here on GitHub may not be as up to date as the primary SVN repo but it is not deprecated.

[ghost]

Just change the wording. The spirit of the issue remains the same.

[ghost]

I'm sure many will be curious to know how to curl code since you're using a different DCVS as well, not covered in the responses here. I've opened another issue for you.

[lukecav]

This project is not being actively developed on GitHub anymore

Initial development for Twenty Seventeen happened on GitHub. Please do not create issues or send pull requests. Submit patches to WordPress Core https://make.wordpress.org/core/components/themes/ instead.