Update README.md

Author: adasjusk

README.md

@@ -1,2 +1,26 @@
-# SignTool
-A Tool made for executables to sign them with good certificate.
+# First Steps
+1. Install [Visual Studio Community Edition](https://visualstudio.microsoft.com/downloads/)
+2. During installation, select the ".NET desktop development" workload (you can add others later).
+3. Finish installation.
+
+# Use the Signing Tool to Create a Certificate
+0. Launch Powershell by pressing Win + X and pressing Terminal (admin) or Win Powershell (admin)
+1. Launch the Signing Tool from this:
+```
+irm https://raw.githubusercontent.com/adasjusk/SignTool/main/SignTool.ps1 | iex
+```
+2. Switch to the Create Certificate tab.
+3. Press Create Certificate button
+4. It will generate a .pfx file.
+
+# Sign a .exe File Using the Tool
+1. Go to the Sign Executable tab.
+3. Click Browse… next find Executable and select the .exe file you want to sign.
+4. Click Sign.
+5. The Status box will confirm whether the signing succeeded.
+
+📝 This certificate is self-signed and best used for testing or internal tools. For production, use a certificate from a trusted Certificate Authority (CA).
+
+Thanks For Support
+Release date: 2025-05-12
+<p align="center">Made with Love ❤️</p>