Udpate readme

README.md

@@ -1,5 +1,46 @@
 DUA (-> Disk Usage Analyzer) is a tool to conveniently learn about the usage of memory of a given directory. It's parallel by default and will max out your SSD, providing relevant information as fast as possible.
 
-### Tasks
+### Installation
 
-* [ ] Simple CLI to list top-level directories similar to sn-sort
+Via `cargo`, which can be obtained using [rustup][rustup]
+
+```
+cargo install dua-cli
+```
+
+### Usage
+
+```bash
+# count the space used in the current working directory
+dua
+# count the space used in all directories that are not hidden
+dua *
+# learn about additional functionality
+dua aggregate --help
+```
+
+### Roadmap
+
+#### 2.0
+
+A sub-command bringing up a terminal user interface to allow drilling into directories, and clearing them out, all just using the keyboard.
+
+#### 1.0
+
+Simple CLI to list top-level directories similar to sn-sort, but faster and more tailored to getting an idea of where most space is used.
+
+### Development
+
+#### Run tests
+
+```bash
+make journey-tests
+```
+
+#### Learn about other targets
+
+```
+make
+```
+
+[rustup]: https://rustup.rs/