updated README.md

README.md

@@ -1,7 +1,22 @@
 # peaches
 
-To install on linux systems:
+peaches is a general purpose workflow organization tool for the terminal.
+It was primarily built for my own personal common actions, and leverages common linux tools such as `ripgrep` and `tmux`.
+
+## Installation
+
+peaches is built to run on linux primarily.
 
 ```sh
 wget https://raw.githubusercontent.com/KCaverly/peaches/main/install.sh -O - | sh
 ```
+
+## Upgrade
+
+To upgrade peaches to the latest version, please run `upgrade`.
+
+```sh
+peaches upgrade
+```
+
+This command will grab the latest install script from github, and update the version installed.