add LICENSE file and update README with application image

README.md

@@ -5,7 +5,14 @@
 Gun Manager is a web application for managing a gun inventory, built with Go and Vue. It allows users to add, edit,
 and delete gun records, as well as view them in a user-friendly interface.
 
+This application is designed to help gun enthusiasts and collectors keep track of their firearms, including details such
+as make, model, caliber, and photos of each gun.
+
+Great for insurance purposes, personal inventory management, or simply for enthusiasts who want to keep a detailed
+record of their collection.
+
 ## Features
+
 - Add, edit, and delete gun records
 - View gun records in a table
 - Search and filter gun records
@@ -14,8 +21,11 @@ and delete gun records, as well as view them in a user-friendly interface.
 
 ## Running the Application
 
-To run the Gun Manager application, you need to have Docker installed on your machine. The application uses a SQLite database to store gun records.
+To run the Gun Manager application, you need to have Docker installed on your machine. The application uses a SQLite
+database to store gun records.
+
 ## Prerequisites
+
 - Docker installed on your machine
 - A directory named `data` in the current working directory to store the SQLite database file