update document

README.md

@@ -3,7 +3,40 @@
 Find tracking number and # from Maldives Post Domestic Letter Bill.
 ![demo_ss.png](demo_ss.png)
 
+### The Problem
+Maldives Post delivery process currently faces an efficiency bottleneck:
+
+1. Each mail bag comes with a printed delivery sheet containing multiple tracking numbers
+2. Recipients need to locate their tracking number on this sheet to sign for their package
+3. This is time-consuming because:
+   - Tracking numbers are long (e.g., UV743594518UZ)
+   - Multiple tracking numbers look very similar
+   - The format mixes letters and numbers
+   - The search process is prone to errors
+
+### The Solution
+
+This tool simplifies the delivery process by:
+1. Converting the printed sheet lookup into a digital search
+2. Allowing barcode scanning of tracking numbers
+3. Instantly showing the corresponding sequence number (#)
+4. Making it easy to find the right row on the printed sheet since sequence numbers are:
+   - Short (1, 2, 3, etc.)
+   - In numerical order
+   - Easy for human eyes to scan quickly
+
+
 ## How to use
-1. Upload spreadsheet provided by Maldives Post
+1. Upload spreadsheet provided by Maldives Post (contact Maldives Post for it)
 2. Scan item bar code or manually enter tracking number
 3. Find the Mail bag and # from printed sheet to sign
+
+Requirements
+- python 3.12+
+
+Usage
+`pip install -r requirements.txt`
+`streamlit run app.py`
+
+OR with docker
+`docker compose up --build`