doc updates

Readme.md

@@ -1,6 +1,6 @@
 
 ### BUGS
-- see malformed_program - wrong parsing of comments
+- see malformed_program - wrong parsing of comments - probably comment with "
 
 ### TODO
 - use file suffix .lsp instead of .lisp
@@ -23,6 +23,7 @@
 - readline
 - execute system command should capture stderr
 - add sleep
+- add built in for and, or
 - file functions
   - name it here
 - string functions
@@ -32,7 +33,6 @@
   - decode-universal-time
 - anv function  
 - add hash datatype
-- add support for nil
 - conversion functions like parse-integer
 - list function nth
 - in test.lisp some explaining prints