Updated readme

Gave the project a rough description.

README.md

@@ -2,3 +2,54 @@ wallys-bashrc
 =============
 
 wally's custom bashrc.  Profile for bash, with all the things you need.  Plus some.
+
+## What is it?
+
+It's a bash script, suitable for using as a .bashrc (to be pulled in when your shell opens).
+
+## What does it do?
+
+Makes your bash look epic.
+
+No seriously.  It's intended to be both functional and aesthetically pleasing.
+
+### It has a floating status bar ...
+
+#### ... that gives you a clock
+
+Yeah.  Simple things eh?
+
+Auto refreshes, real-time.  Sits at the top left of your terminal.
+
+#### ... that tells you your CPU load
+
+And gives you a little graph.  Sits next to the clock.
+
+#### ... that shows you who's logged on
+
+Next to the CPU graph.
+
+### It remembers when you ran previous commands, and how long they took
+
+Because everyone ends up copying a terminal output, and then forgetting when each command was ran.
+
+### It's colours let you know if something worked, or if it failed
+
+Excel calls it conditional formatting!
+
+### And it knows who you are.  Yes, you.  MrX, escalated to root via sudo via SSH from a remote host.
+
+Yeah.  You.
+
+### And it should work on all *nix.
+
+Coded on OSX.  Tested on Debian, CentOS.
+
+## All this without locking up your shell
+
+By using a subprocess and some signal abuse - it does all this without lagging your shell.  (Well, if you're on a slow connection - it'll lag.  But not, say, over SSH on a half-decent broadband connection.)
+
+## It's here for you to enjoy.
+
+Guys, girls:  please take it, extend it, feel very free to suggest changes and extensions.
+