Update README.md

README.md

@@ -1,3 +1,22 @@
 # banking-breakdown
 
-Visualize bank statements.
+Visualize bank statements.
+
+## Usage
+
+1. Assign categories to bank statement entries:
+    ```bash
+    $ python -m banking_breakdown categorize -i [bank_statement.csv] -f [regex_file] 
+    ```
+2. Generate report from categorized data:
+   ```bash
+   $ python -m banking_breakdown report -i [categorized.csv]
+   ```
+
+## Other
+
+### Generate GUI from `*.ui` file
+
+```bash
+$ pyuic6 res/main_window.ui -o banking_breakdown/ui/generated.py
+```