Update README.md

Author: eliasamurphy

README.md

@@ -14,6 +14,13 @@ You can download Poly [here](https://ravendevteam.org/software/poly).
 
 To compile from source, make sure you have Python 3.12.4, and Nuitka. Install the necessary dependencies from `requirements.txt`, then run `build.bat`.
 
+## Usage
+- **Creating a new tab:** CTRL + T
+- **Closing current tab:** CTRL + W
+- **Switching to next tab:** Tab
+- **Switching to previous tab:** Shift + Tab
+- **.polyrc:** Create a .polyrc file in your home directory to define initial commands to execute.
+
 ## Screenshots
 
 ![Demo Screenshot 1](https://raw.githubusercontent.com/ravendevteam/poly/refs/heads/main/demo_screenshot_1.png)