feat: init command and improve project structure

tasks/README.md

@@ -0,0 +1,17 @@
+# Tasks
+
+This folder contains tasks as defined by the specificiation of [Tatr](https://github.com/tsoding/tatr).
+
+<img src="https://raw.githubusercontent.com/tsoding/tatr/main/cover/cover-512.png" width=512>
+
+## Quick Start on Linux
+
+```console
+$ git clone https://github.com/tsoding/tatr
+$ cd tatr
+$ cc -o nob nob.c
+$ ./nob
+$ sudo cp ./build/tatr /usr/local/bin/
+```
+
+After that run `tatr ls` anywhere within this repo to get the list of currently opened tasks. Use `tatr help` to list all the available subcommands of the tool.