Merge pull request #2463 from mzch/master

Removed PPnet.

README.md

@@ -457,7 +457,6 @@ _[SIP](https://en.wikipedia.org/wiki/Session_Initiation_Protocol)/[IPBX](https:/
 - [phpBB](https://www.phpbb.com/) - Flat-forum bulletin board software solution that can be used to stay in touch with a group of people or can power your entire website. ([Source Code](https://github.com/phpbb/phpbb)) `GPL-2.0` `PHP`
 - [PixelFed](https://pixelfed.social) - Pixelfed is an open-source, federated platform alternate to Instagram. ([Source Code](http://github.com/pixelfed/pixelfed)) `AGPL-3.0` `PHP\HTML\Vue`
 - [Pleroma](https://pleroma.social) - Federated microblogging server, Mastodon, GNU social, & ActivityPub compatible. ([Source Code](https://git.pleroma.social/pleroma/pleroma)) `AGPL-3.0` `Elixir`
-- [PPnet](https://github.com/pixelpark/ppnet) - Create and host your own social network. `MIT` `Javascript`
 - [Pump.io](http://pump.io/) - Stream server that does most of what people really want from a social network. ([Source Code](https://github.com/e14n/pump.io)) `Apache-2.0` `Nodejs`
 - [remark42](https://remark42.com/) - A lightweight and simple comment engine, which doesn't spy on users. It can be embedded into blogs, articles or any other place where readers add comments. ([Demo](https://remark42.com/demo/), [Source Code](https://github.com/umputun/remark)) `MIT` `Go`
 - [Satellity](https://satellity.org/) - Yet another open source forum written in Golang, React and PostgreSQL. ([Source Code](https://github.com/satellity/satellity)) `MIT` `Go`