Added some basic cloforth doc

README.md

@@ -1,4 +1,63 @@
 cloforth
 ========
 
-A little Forth-like language implemented in Clojure
+A little Cloforth-like language implemented in Clojure
+
+Cloforth is a stack oriented, postfix languages.
+What this means is that numbers just get
+pushed onto the stack, so:
+
+3
+
+Will simply push 3 onto the stack, while
+
+3 5
+
+Will first push 3 then 5 onto the stack. The
+typical operators will pop a couple of numbers
+off of the stack, operate on them and then
+push the result back on, so that:
+
+3 5 +
+
+Will leave you with 8 on the stack.
+
+Cloforth commands are called 'words'. So there
+is an 'nl' word which just prints a newline.
+So do this:
+
+nl
+
+And you will see a blank line printed. Another
+word is the plain old dot: . Yes, it's not much
+of a word, but that is the jargon. The . word
+justs prints whatever is on the top of the stack
+(popping it off in the process) Thus if you
+do this:
+
+3 . nl
+
+You will see a three followed by a newline printed.
+
+Other handy words are dup, which pushes a copy of
+whatever is on top of the stack back onto the
+stack, so that
+
+3 dup . nl
+
+Will print the three and also leave it on top of
+the stack.
+
+You can define your own words with :
+Colon takes a name and a list of words
+enclosed in [ ] and defines a new word.
+Thus this:
+
+: plus1 [ 1 + ]
+
+Defines a new word called 'plus1' that adds
+one to whatever is on the top of the stack.
+
+
+
+