refactor: add decryption command

Author: ruanyf

Encrypt.sh

@@ -1,8 +1,11 @@
 #!/bin/bash
+
 echo "Welcome, I am ready to encrypt a file/folder for you"
 echo "currently I have a limitation, Place me to teh same folder, where a file to be encrypted is present"
 echo "Enter the Exact File Name with extension"
 read file;
+# decryption command
+# gpg -d filename.gpg > filename
 gpg -c $file
 echo "I have encrypted the file sucessfully..."
 echo "Now I will be removing the original file"