add some nice readme docs

README.md

@@ -1,4 +1,28 @@
-# Hush in Perl
+# Hushlist: Censorship Resistant Communication
 
+    # create a new Hush contact
+    hushlist contact add alice z123
+    hushlist contact add bob z456
+
+    # see an overview of your local hushlist infoz
+    hushlist status
+
+    # create a new private hushlist, which exists locally only
+    # and has no cost associated, since nothing is sent to the blockchain
     hushlist new listname
-    hushlist send
+
+    # make an already created private hushlist PUBLIC, i.e.
+    # publish it's privkey to the blockchain. This costs HUSH, since
+    # we need to send an xtn to the blockchain
+    hushlist public listname
+
+    hushlist status listname
+    hushlist add listname alice bob
+    hushlist send listname "A beginning is the time for taking the most delicate care that the balances are correct."
+
+    # send using a non-default chain
+    hushlist send listname --chain tush "If wishes were fishes, we'd all cast nets."
+
+    # donate 5 HUSH to the nice devs who write this software
+    hushlist donate 5 hush
+

bin/hushlist

@@ -32,6 +32,7 @@ my $COMMANDS  = {
     "remove"  =>   \&remove,
     "send"    =>   \&send,
     "status"  =>   \&status,
+    "public"  =>   \&public,
 };
 run();
 exit;
@@ -70,6 +71,10 @@ sub status {
     }
 }
 
+sub public {
+    my ($name) = @_;
+}
+
 sub new {
     my $name = shift || '';
     #TODO: better validation and allow safe unicode stuff