Readme update

README.md

@@ -22,6 +22,31 @@ On Debian-based systems:
 
 	apt-get install libtext-clip-perl class-dbi-sqlite-perl
 
+# Usage
+
+First you need to generate PGP key:
+
+        gpg --gen-key
+
+Set this key(or another of cource) for default:
+        
+        vim ~/.gnupg/gpg.conf
+        # find string and uncomment or add it
+        default-key your@mail-address-key.org
+        :wq
+
+First run:
+       
+        $ ./pm.pl
+        Creating configuration dirrectory...
+        Creating database...
+        Creating database schema...
+        Encrypt database...
+        Done!
+
+Show help screen:
+
+        $ ./pm.pl -h
 
 # Changelog