Internationalization: move guide to en folder and preserve its history. (#494)

* chore: move guide to en folder

* docs: add english as language

docs/guide/src/en/getting_started/tui.md

@@ -0,0 +1,46 @@
+# Terminal UI
+
+You can build a text-based interface that will run in the terminal using Dioxus.
+
+![Hello World screenshot](https://github.com/DioxusLabs/rink/raw/master/examples/example.png)
+
+> Note: this book was written with HTML-based platforms in mind. You might be able to follow along with TUI, but you'll have to adapt a bit.
+
+## Support
+
+TUI support is currently quite experimental. Even the project name will change. But, if you're willing to venture into the realm of the unknown, this guide will get you started.
+
+## Getting Set up
+
+
+Start by making a new package and adding our TUI feature.
+
+```shell
+cargo new --bin demo
+cd demo
+cargo add dioxus --features tui
+```
+
+Then, edit your `main.rs` with the basic template. 
+
+```rust
+{{#include ../../examples/hello_world_tui.rs}}
+```
+
+To run our app:
+
+```shell
+cargo run
+```
+
+Press "ctrl-c" to close the app. To switch from "ctrl-c" to  just "q" to quit you can launch the app with a configuration to disable the default quit and use the root TuiContext to quit on your own.
+
+```rust
+{{#include ../../examples/hello_world_tui_no_ctrl_c.rs}}
+```
+
+## Notes
+
+- Our TUI package uses flexbox for layout
+- 1px is one character lineheight. Your regular CSS px does not translate.
+- If your app panics, your terminal is wrecked. This will be fixed eventually.