add blog (#187)

* blog: v1 release notes

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* Update 20220112-simplex-chat-v1-released.md (#183)

updated intro and "journalist" description.

* add blog posts

* make corrections to v1 blog (#188)

* update 20210512-simplex-chat-terminal-ui.md (#192)

* Update 20210512-simplex-chat-terminal-ui.md

* Update 20210914-simplex-chat-v0.4-released.md

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Co-authored-by: Mark Aleksander Hil <32651095+markaleksanderh@users.noreply.github.com>
Co-authored-by: Rob Chandhok <rob@chandhok.net>
Co-authored-by: Efim Poberezkin <8711996+efim-poberezkin@users.noreply.github.com>

blog/20210512-simplex-chat-terminal-ui.md

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+## Announcing SimpleX Chat Prototype!
+
+**Published:** May 12, 2021
+
+For the last six months [me](https://github.com/epoberezkin) and my son [Efim](https://github.com/efim-poberezkin) have been working to bring you a working prototype of SimpleX Chat. We're excited to announce SimpleX Chat terminal client is now available [here](https://github.com/simplex-chat/simplex-chat) on Linux, Windows and Mac (you can either build from source or download the binary for Linux, Windows or Mac from the latest release).
+
+We’ve been using the terminal client between us and a few other people for a couple of months now, eating our own “dog food”, and have developed up to version 0.3.1, with most of the messaging protocol features we originally planned
+
+### Features
+
+- End-to-end encryption with protection from man in the middle attack. The connection invitation must be passed out-of-band (see [how to use SimpleX Chat](https://github.com/simplex-chat/simplex-chat#how-to-use-simplex-chat) in the repo).
+- No global identity or any usernames visible to the server(s), ensuring full privacy of your contacts and conversations.
+- Message signing and verification with automatically generated RSA keys, with keys being unique per each connection.
+- Authorization of each command/message by the servers with automatically generated RSA key pairs, also unique per connection.
+- Message integrity validation (via passing the digests of the previous messages).
+- Encrypted TCP transport, independent of certificates.
+- You can deploy your own server, but you don’t have to - the demo SMP server to relay your messages is available at smp1.simplex.im:5223 (pre-configured in the client).
+
+### We need your help!
+
+We're building a new kind of chat network - the only network that lets you control your chat. We'd really appreciate your feedback, criticism and support - a star on the github repo, signing up to the mailing list or any contribution to the project will help. There is so much more to do!
+
+---
+
+Originally published at https://www.reddit.com/r/haskell/comments/naw6lz/simplex_chat_prototype_terminal_ui_made_in_haskell/