Added docs with simple insall steps

docs/INSTALL.md

@@ -0,0 +1,20 @@
+ # Installation steps
+
+1) Ensure [OneDrive for Linux](https://abraunegg.github.io/) is instelled based on [instructions](https://github.com/abraunegg/onedrive/blob/master/docs/INSTALL.md) for your distro. 
+1) Ensure Python3 and [pip](https://pip.pypa.io/en/stable/installation/) are installed on your system. 
+1) Clone or download content this repository.
+1) (Optional) Create and activate a Python virtual environment:
+```sh
+python3 -m venv venv
+source venv/bin/activate
+```
+1) Install dependencies:
+```sh
+python3 -m pip install -r requirements.txt
+```
+1) Start OneDrive GUI:
+```sh
+cd OneDriveGUI/
+python3 OneDriveGUI.py
+```
+

requirements.txt

@@ -1,2 +1 @@
-psutil==5.9.0
-PySide6==6.2.2.1
+PySide6