Update LICENSE.txt, README.md

LICENSE.txt

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) [year] [fullname]
+Copyright (c) 2023 Andrii Lavrenko
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1 +1,39 @@
-# SteamAccountDataFetcher
+# SteamAccountDataFetcher
+
+Utility for collecting Steam account information.  
+The utility collects information about:
+
+- SteamID;
+- WebAPI (in case of missing - it will generate);
+- The presence of a Community ban on the account;
+- Availability of rights for full use of the account (Limited or Unlimited);
+- All purchased licenses on the account.
+
+## Note
+
+First of all, this utility is for my own internal needs. You can see this by the completely static part that is supposed to be the [configuration](./SteamAccountDataFetcher/SteamDataClient/Configuration.cs).
+
+But still, I decided to share my work in the public domain.
+If someone finds it useful – you're welcome.
+
+## How to get
+
+- Download source zip file and compile
+- Or download from [Release](https://github.com/SeRi0uS007/SteamAccountDataFetcher/releases) page
+
+## Usage
+
+1. Prepare a CSV file with login, password, and TOTP key for generating two-factor authentication;
+2. This file needs to be renamed to **SteamAccountsLogin.txt**;
+3. Put this file together with the executable file;
+4. Run and wait;
+5. The result will be a file named **SteamAccounts.json**, which will be automatically placed next to it.
+
+## CSV File Format
+
+```csv
+AccountLogin;AccountPassword;SharedSecret
+login1;password1;sharedSecret1
+login2;password2;sharedSecret2
+login3;password3;sharedSecret3
+```