update README

README.md

@@ -2,3 +2,50 @@
 PassMNG is a simple TUI Password Manager written in Rust for managing passwords and securing them with help of SQLCipher
 
 Related Youtube Video: [here](https://www.youtube.com/watch?v=7r7HOZReZ60)
+
+## Usage
+Just enter the program:
+```
+passmng
+```
+Then It will ask for Passphrase:
+```
+Enter Passphrase:
+```
+Pay attention to the Passphrase you entered for the first time. It's will be the Passprase of program for the rest.
+
+And that's it.
+
+
+```
+L:           List
+U:           On list, It's copy the Username
+P:           On list, It's copy the Password
+D:           On list, It's Delete
+E:           On list, It's Edit
+S:           Search
+Insert Btn:  Insert new Password
+Tab:         Go to next field
+Shift+Tab:   Go to previous filed
+Esc:         Exit insert mode
+```
+
+## Build on Windows
+First you need to install OpenSSL using [this](https://wiki.openssl.org/index.php/Binaries) link.
+
+Then you need to add OpenSSL ENV. In PowerShell enter this:
+```
+setx OPENSSL_DIR "PATH TO OPENSSL FOLDER"
+eg: setx OPENSSL_DIR "C:\Program Files\OpenSSL-Win64"
+```
+then refresh the env:
+```
+refreshenv
+```
+Exit the PowerShell and open it again
+
+And finally:
+```
+cargo build --release
+```
+Enjoy.